Newer cars have a TPMS and warn you when the pressure gets low. Now that
cold weather is here,check to see that your tire is at least the
recommended pressure. I forgot about it and this morning it was 7
degrees. One tire was 1 pound under and set off the warning. It would
not reset after driving as it had to come up even more than driving did.
Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

On 1/5/2016 8:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that
cold weather is here,check to see that your tire is at least the
recommended pressure. I forgot about it and this morning it was 7
degrees. One tire was 1 pound under and set off the warning. It would
not reset after driving as it had to come up even more than driving did.
Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

What's more annoying is when the sensor fails and it costs over $100 to
fix it at the dealer. Happened on my wife's Subaru and even though I
set pressure on all the tires a few pounds higher, would not stop.

Another example of dumbing down America by requiring these sensors.

"Frank" "frank wrote in message
...
What's more annoying is when the sensor fails and it costs over $100 to
fix it at the dealer. Happened on my wife's Subaru and even though I set
pressure on all the tires a few pounds higher, would not stop.

Another example of dumbing down America by requiring these sensors.

I am just glad the state inspection does not require them to work. I have a
2008 car with about 25,ooo on it and a 2007 truck with about 55,000 on it
and both have a bad sensor in atleast 1 tire. Probably a dead battery in
them. A tire place told me they would be about $ 60 for each tire. I am not
about to spend around $ 500 or more just for some stupid sensors if I don't
have to.

That is similar to a car I had years ago . A milage counter came on around
50,000 that was to replace a sensor that later was determined not to need
replacing at 50,000. The factory fix was to cut a wire that turned the
light on.

On 1/5/2016 8:50 PM, Frank wrote:


What's more annoying is when the sensor fails and it costs over $100 to
fix it at the dealer. Happened on my wife's Subaru and even though I
set pressure on all the tires a few pounds higher, would not stop.

Another example of dumbing down America by requiring these sensors.


There are a couple different types from what I heard. Last time I
bought tires the dealer said it they had to be replaced they were $15.

On 1/5/2016 7:50 PM, Frank wrote:

Another example of dumbing down America by requiring these sensors.

It all started when we switched from candles to oil lanterns. Then to
gaslight. Then electricity. It was bad enough that the city folk used
it, then FDR decided to inflict it on the rest of America, too.

Don't get me started on modern medicine. My great grandparents died of
TB. They didn't need no rescuing with those newfangled antiobiotics.

On Tuesday, January 5, 2016 at 7:50:51 PM UTC-6, Frank wrote:
On 1/5/2016 8:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that
cold weather is here,check to see that your tire is at least the
recommended pressure. I forgot about it and this morning it was 7
degrees. One tire was 1 pound under and set off the warning. It would
not reset after driving as it had to come up even more than driving did.
Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

What's more annoying is when the sensor fails and it costs over $100 to
fix it at the dealer. Happened on my wife's Subaru and even though I
set pressure on all the tires a few pounds higher, would not stop.

Another example of dumbing down America by requiring these sensors.

If you regulary check the tire pressure, decline any services to the tire pressure monitor.


Andy

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.

On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

My hunch is leakage. TPMS set without proper torque when installed can
leak air. I have TPMS on summer and winter tires on separate OEM rims. Never
have such problem. I usually over inflate by 5% or so. You'd feel the
ride is deffirent over inflating by ~10% or so.

On 1/5/2016 9:32 PM, Tony Hwang wrote:
wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it
had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

My hunch is leakage. TPMS set without proper torque when installed can leak
air. I have TPMS on summer and winter tires on separate OEM rims. Never
have such problem. I usually over inflate by 5% or so. You'd feel the
ride is deffirent over inflating by ~10% or so.

A *leak* would show LOW pressures, not *high*! I am continually bleeding
pressure from the tires as the "few" cold mornings are the exceptions
yet the tire monkeys plan on them as the *norm*.

On Tue, 5 Jan 2016 21:32:08 -0700, Tony Hwang
wrote:

wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

My hunch is leakage. TPMS set without proper torque when installed can
leak air. I have TPMS on summer and winter tires on separate OEM rims. Never
have such problem. I usually over inflate by 5% or so. You'd feel the
ride is deffirent over inflating by ~10% or so.
10% ovderinflation is peanuts.
Most cars ride and handle much better (and tires last longer)
with10-15% overinflation. Spec on my Taurus is 32. I run a minimum of
36 - usually 38PSI Stops the "tucking" on turns and makes it handle a
whole lot nicer. Doesn't hurt the ride either.

posted for all of us...



On Tue, 5 Jan 2016 21:32:08 -0700, Tony Hwang
wrote:

wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

My hunch is leakage. TPMS set without proper torque when installed can
leak air. I have TPMS on summer and winter tires on separate OEM rims. Never
have such problem. I usually over inflate by 5% or so. You'd feel the
ride is deffirent over inflating by ~10% or so.
10% ovderinflation is peanuts.
Most cars ride and handle much better (and tires last longer)
with10-15% overinflation. Spec on my Taurus is 32. I run a minimum of
36 - usually 38PSI Stops the "tucking" on turns and makes it handle a
whole lot nicer. Doesn't hurt the ride either.

+1 *as usual*

--
Tekkie

On 1/5/2016 9:18 PM, wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

It's 30 degrees. Tire monkey inflates tires to 38/36 psi (instead of 35/33).

*Ambient* changes by 50 degrees -- to 80F (the next afternoon). By *your*
numbers, expect a 10% change in tire pressures: 41.8/39.6

The problem is the naive "+3" that the tire monkey uses to bias the
"hot" temperature of the tire. He's factoring in a ~10% increase even
though the tires *probably* haven't risen 50 degrees in the 2 miles from
our home to the store over *cold* asphalt.

E.g., car claims it is 67F in the garage, now. It's been sitting there for
at least 6 hours. TPMS claims 38/36 as current pressures.

Tomorrow AM we'll expect 50 for a low -- with a high of 60. Saturday morning,
we'll touch freezing (we've already been down to 21). Last month, we were
seeing 80. Temperatures around town vary by ~10F (currently, 48-56F).
When we purchased the car, it was 110F. So, sitting in the garage these
past four months, the car experiences an 90F swing in temperatures -- before
rolling friction is taken into account.

Pick an inflation pressure. Then, expect to change it pretty regularly
(or live with under/overinflated tires in SOME set of conditions).

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

On Tue, 05 Jan 2016 22:10:40 -0700, Don Y
wrote:

On 1/5/2016 9:18 PM, wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

It's 30 degrees. Tire monkey inflates tires to 38/36 psi (instead of 35/33).

*Ambient* changes by 50 degrees -- to 80F (the next afternoon). By *your*
numbers, expect a 10% change in tire pressures: 41.8/39.6

The problem is the naive "+3" that the tire monkey uses to bias the
"hot" temperature of the tire. He's factoring in a ~10% increase even
though the tires *probably* haven't risen 50 degrees in the 2 miles from
our home to the store over *cold* asphalt.

E.g., car claims it is 67F in the garage, now. It's been sitting there for
at least 6 hours. TPMS claims 38/36 as current pressures.

Tomorrow AM we'll expect 50 for a low -- with a high of 60. Saturday morning,
we'll touch freezing (we've already been down to 21). Last month, we were
seeing 80. Temperatures around town vary by ~10F (currently, 48-56F).
When we purchased the car, it was 110F. So, sitting in the garage these
past four months, the car experiences an 90F swing in temperatures -- before
rolling friction is taken into account.

Pick an inflation pressure. Then, expect to change it pretty regularly
(or live with under/overinflated tires in SOME set of conditions).

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

No big deal. I virtually ALWAYS over-inflate my tires according to the
placard. by at least 10% (at 70 degree F nominal temps)

My tires see temp swings of up to 130F degrees (or even slightly more)
over the year, not taking into account the heat buildup from driving
flex etc..

wrote:
On Tue, 05 Jan 2016 20:06:49 -0700, Don Y
wrote:

On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One tire was 1
pound under and set off the warning. It would not reset after driving as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.
If you are getting that kind of pressure change they are NOT using
nitrogen

Nitrogen is very thermally stable pressure-wize,The calculations for
this change are based on the Ideal Gas Law. A good rule of thumb is
this: For every 10 F degree change in temperature, the pressure will
change by 1.9%. With dry nitrogen,if a tire is filled to 32 psi at a
temperature of 75 F degrees and the temperature drops 10 degrees, the
tire pressure will drop to 31.4 psi; a difference of .6 psi. If filled
at 65 degrees to 32psi, and driven untill the tire temp is 95 degrees,
the pressure will rise to 33.8psi

A 50 degree temp rise will only add 3psi - which is no problem at all.

With air which contains moisture, you will get more pressure change.,
but not a huge amount.

Nitrogen or not, I suspect air leak. I have two sets of tires on rims
for summer and winter. They have TPMS. Never have such problem here.

On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!



I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a
car yet that could not go 3 - 4 months

On 1/5/2016 9:52 PM, Ed Pawlowski wrote:
On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a car yet
that could not go 3 - 4 months

We *add* because I *bleed* off the excess pressure. Ambient has changed
~60F in the past 4 weeks.

As I stated elsewhere, TPMS claims tires are presently at 38/36 at 67F,
sitting in the garage for 6 hours (51F outside). In a few days, we'll be
at freezing when SWMBO heads off for an early morning class. A few
of weeks ago, 80 degrees in the afternoon. Two weeks ago, 21-24 at night.
In another couple of weeks, 80 will be the norm, again. Then, +10F every
month until we're at 110.

When the pressures are "in your face" (on the dash), you're less likely
to ignore those low *or* high pressures (than you would, otherwise, if
you had to manually check pressures!).

So, you pick a temperature and a pressure and *hope* the weather
stays reasonably constant. As all *I* can do is bleed pressure from
the tires, I have to rely on Costco to put it back in when the
temperatures fall (again).

On 1/6/2016 12:51 AM, Don Y wrote:


We *add* because I *bleed* off the excess pressure. Ambient has changed
~60F in the past 4 weeks.

As I stated elsewhere, TPMS claims tires are presently at 38/36 at 67F,
sitting in the garage for 6 hours (51F outside). In a few days, we'll be
at freezing when SWMBO heads off for an early morning class. A few
of weeks ago, 80 degrees in the afternoon. Two weeks ago, 21-24 at night.
In another couple of weeks, 80 will be the norm, again. Then, +10F every
month until we're at 110.

When the pressures are "in your face" (on the dash), you're less likely
to ignore those low *or* high pressures (than you would, otherwise, if
you had to manually check pressures!).

So, you pick a temperature and a pressure and *hope* the weather
stays reasonably constant. As all *I* can do is bleed pressure from
the tires, I have to rely on Costco to put it back in when the
temperatures fall (again).

I'd have it filled about 2 lb over the recommendation and just leave it.
I don't see the pressure unless I turn the screen t that page or if
there is a low warning. Tires have a pretty reasonable tolerance. No
sense going nuts over it

On 1/6/2016 1:04 PM, Ed Pawlowski wrote:
On 1/6/2016 12:51 AM, Don Y wrote:


We *add* because I *bleed* off the excess pressure. Ambient has changed
~60F in the past 4 weeks.

As I stated elsewhere, TPMS claims tires are presently at 38/36 at 67F,
sitting in the garage for 6 hours (51F outside). In a few days, we'll be
at freezing when SWMBO heads off for an early morning class. A few
of weeks ago, 80 degrees in the afternoon. Two weeks ago, 21-24 at night.
In another couple of weeks, 80 will be the norm, again. Then, +10F every
month until we're at 110.

When the pressures are "in your face" (on the dash), you're less likely
to ignore those low *or* high pressures (than you would, otherwise, if
you had to manually check pressures!).

So, you pick a temperature and a pressure and *hope* the weather
stays reasonably constant. As all *I* can do is bleed pressure from
the tires, I have to rely on Costco to put it back in when the
temperatures fall (again).

I'd have it filled about 2 lb over the recommendation and just leave it. I
don't see the pressure unless I turn the screen t that page or if there is a
low warning. Tires have a pretty reasonable tolerance. No sense going nuts
over it

We've never had a warning indicated. Instead, SWMBO started exploring the
various displays on the various screens shortly after purchase (makes sense
to familiarize yourself with a new vehicle). She then became fixated on
that display when she noticed the one tire losing pressure (i.e., she made
a point of checking it each day and noting that it didn't "track" the
other tires).

There are three screens/displays in the car. The one that shows tire
pressures shows very little else of interest -- the various odometers,
oil life, instantaneous fuel economy (also available on one of the other
screens), average speed/hours driven (on this tank of gas), etc.

It also shows some *dynamic* displays -- e.g., if you alter the
volume, channel, etc. on the sound system, that is displayed
briefly, overriding what would otherwise be displayed. I think
there is an option that allows the driving directions to appear
there ("turn left", "turn right", etc.). And, the lane departure
warning system uses it (we didn't opt to purchase that "toy").

It's much easier to keep the tire pressures "consistent" in the
non-winter months as the temperatures tend to vary less.

On Tue, 05 Jan 2016 22:51:27 -0700, Don Y
wrote:

On 1/5/2016 9:52 PM, Ed Pawlowski wrote:
On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a car yet
that could not go 3 - 4 months

We *add* because I *bleed* off the excess pressure. Ambient has changed
~60F in the past 4 weeks.

As I stated elsewhere, TPMS claims tires are presently at 38/36 at 67F,
sitting in the garage for 6 hours (51F outside). In a few days, we'll be
at freezing when SWMBO heads off for an early morning class. A few
of weeks ago, 80 degrees in the afternoon. Two weeks ago, 21-24 at night.
In another couple of weeks, 80 will be the norm, again. Then, +10F every
month until we're at 110.

When the pressures are "in your face" (on the dash), you're less likely
to ignore those low *or* high pressures (than you would, otherwise, if
you had to manually check pressures!).

So, you pick a temperature and a pressure and *hope* the weather
stays reasonably constant. As all *I* can do is bleed pressure from
the tires, I have to rely on Costco to put it back in when the
temperatures fall (again).
Do yourself a favour and "chill out" A 15% overinflation will do
absolutely NO damage to your car or tires. As long as all 4 tires
increase and decrease pressure together you have absolutely nothing to
worry about. A small amount of underinflation is a lot worse than a
moderate (but much larger) overinflation.

If only we all had nothing more serious to worry about!!!!!

On 1/6/2016 6:34 PM, wrote:
Do yourself a favour and "chill out" A 15% overinflation will do
absolutely NO damage to your car or tires. As long as all 4 tires
increase and decrease pressure together you have absolutely nothing to
worry about. A small amount of underinflation is a lot worse than a
moderate (but much larger) overinflation.

If only we all had nothing more serious to worry about!!!!!


I guess in the USA, we can worry about politics. Who
will be the next leader of the free world?

--
..
Christopher A. Young
learn more about Jesus
.. www.lds.org
..
..

posted for all of us...



On Tue, 05 Jan 2016 22:51:27 -0700, Don Y
wrote:

On 1/5/2016 9:52 PM, Ed Pawlowski wrote:
On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a car yet
that could not go 3 - 4 months

We *add* because I *bleed* off the excess pressure. Ambient has changed
~60F in the past 4 weeks.

As I stated elsewhere, TPMS claims tires are presently at 38/36 at 67F,
sitting in the garage for 6 hours (51F outside). In a few days, we'll be
at freezing when SWMBO heads off for an early morning class. A few
of weeks ago, 80 degrees in the afternoon. Two weeks ago, 21-24 at night.
In another couple of weeks, 80 will be the norm, again. Then, +10F every
month until we're at 110.

When the pressures are "in your face" (on the dash), you're less likely
to ignore those low *or* high pressures (than you would, otherwise, if
you had to manually check pressures!).

So, you pick a temperature and a pressure and *hope* the weather
stays reasonably constant. As all *I* can do is bleed pressure from
the tires, I have to rely on Costco to put it back in when the
temperatures fall (again).
Do yourself a favour and "chill out" A 15% overinflation will do
absolutely NO damage to your car or tires. As long as all 4 tires
increase and decrease pressure together you have absolutely nothing to
worry about. A small amount of underinflation is a lot worse than a
moderate (but much larger) overinflation.

If only we all had nothing more serious to worry about!!!!!

Another +1 geez...

--
Tekkie

On Tue, 5 Jan 2016 23:52:03 -0500, Ed Pawlowski wrote:

On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!



I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a
car yet that could not go 3 - 4 months

Yeah I use that 80% stuff too and I have a machine in my garage that
seems to make it virtually for free
I seldom have to add air unless I have a (problem) leak.
One thing about my wife's Lincoln is that sensor does not turn off
right away, you have to drive a little ways. Trust your gauge.

posted for all of us...



On Tue, 5 Jan 2016 23:52:03 -0500, Ed Pawlowski wrote:

On 1/5/2016 10:06 PM, Don Y wrote:


We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!



I use 80% nitrogen.

Adding every week or two seems like a lot of seepage. I've not had a
car yet that could not go 3 - 4 months

Yeah I use that 80% stuff too and I have a machine in my garage that
seems to make it virtually for free
I seldom have to add air unless I have a (problem) leak.
One thing about my wife's Lincoln is that sensor does not turn off
right away, you have to drive a little ways. Trust your gauge.

heh heh heh

--
Tekkie

On 1/5/2016 10:06 PM, Don Y wrote:
On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now
that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One
tire was 1
pound under and set off the warning. It would not reset after driving
as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.

From the perfect gas law, pressure varies with temperatu PV=nRT

Temperature is measured in degrees Kelvin so you can calculate potential
pressure drops or increases by the ratio of temperatures:

PV/T=P'V'/T'

The constants drop out and if you assume no volume change:

P/T=P'/T'

On 1/5/16 10:06 PM, Don Y wrote:
On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now
that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One
tire was 1
pound under and set off the warning. It would not reset after driving
as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.

Filling tires with nitrogen rather than old plain air (78% nitrogen
anyway) is one of those things that sounds good on paper and which tire
buffs rave about-- but which has little impact in the real world.

Plus I suspect it costs you more in gas to drive over to Costco than you
actually save. You also have to let some lead-foot 85 IQ tire installer
jerk drive your car while you sit around on a ripped vinyl chair in an
uncomfortable waiting room-- or worse, roam around the store and pick up
a shrink wrapped pack of 96 rolls of toilet paper or a 5 pound box of
corn flakes...

--
With all this €œgun control€� talk, I havent heard one politician say how
they plan to take guns away from criminals and terrorists€” just from law
abiding citizens€¦

On 1/6/2016 7:18 AM, Wade Garrett wrote:
On 1/5/16 10:06 PM, Don Y wrote:
On 1/5/2016 6:43 PM, Ed Pawlowski wrote:
Newer cars have a TPMS and warn you when the pressure gets low. Now
that cold
weather is here,check to see that your tire is at least the recommended
pressure. I forgot about it and this morning it was 7 degrees. One
tire was 1
pound under and set off the warning. It would not reset after driving
as it had
to come up even more than driving did. Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me
to have that yellow light on when driving. I understand this is a common
happening for the first really cold snap.

We're back at Costco every week or two having them add nitrogen to
the tires. On a cool day (30-ish in the AM), tire pressure (all
around) will be low. However, on a warm/normal day (80-ish in the PM),
pressures will be high -- TOO high if we'd added nitrogen on one of
those colder mornings!

[I think it's 1 psi per 10 degrees F?]

And, the Costco tire droids want to "overfill" by ~3 psi claiming
the tires are "hot" now that you've driven on them. So, instead
of 35/33 psi, they'll fill to 38/36 psi. Then, the ambient
temperature climbs 40 or 50 degrees and the tires are considerably
overinflated.

So, bleed out some nitrogen to bring them down to ~40/38 ("hot")
and hope we don't get another cold day to bring them *down*, too far.

Filling tires with nitrogen rather than old plain air (78% nitrogen anyway) is
one of those things that sounds good on paper and which tire buffs rave about--
but which has little impact in the real world.

Plus I suspect it costs you more in gas to drive over to Costco than you
actually save. You also have to let some lead-foot 85 IQ tire installer jerk
drive your car while you sit around on a ripped vinyl chair in an uncomfortable
waiting room-- or worse, roam around the store and pick up a shrink wrapped
pack of 96 rolls of toilet paper or a 5 pound box of corn flakes...

We can drive the 2 miles to Costco to have *them* put 95% N2 in the tires.

Or, we can drive the 2 miles to the Albertson's ACROSS THE STREET from Costco
and drop quarters into the *air* dispenser and fill the tires ourselves.

Or, we can buy a small compressor and find a place to store it for the
few times it's needed.

Given that we shop *at* Costco every week, there's no cost to having them
do this -- other than waiting 60-120 seconds for the tire monkey to drop
what he's doing and walk over to the car (WHILE WE SIT IN IT) to do this
for us.

[BTW, there are only 30 rolls of paper in the packages and neither of us
eats Corn Flakes]

Have you actually ever *been* to a Costco? Or, are the ones in your part
of the world NOT as friendly as ours?

On Wed, 06 Jan 2016 09:16:18 -0700, Don Y
wrote in

We can drive the 2 miles to Costco to have *them* put 95% N2 in the tires.

They do that for free?
--
Web based forums are like subscribing to 10 different newspapers
and having to visit 10 different news stands to pickup each one.
Email list-server groups and USENET are like having all of those
newspapers delivered to your door every morning.

On 1/6/2016 11:41 AM, CRNG wrote:
On Wed, 06 Jan 2016 09:16:18 -0700, Don Y
wrote in

We can drive the 2 miles to Costco to have *them* put 95% N2 in the tires.

They do that for free?

Yes. A "membership benefit".

If you purchase tires from them, they will also rotate and fix
flats for free (though there are other "tire stores" who will
do likewise).

On 1/6/16 11:16 AM, Don Y wrote:
On 1/6/2016 7:18 AM, Wade Garrett wrote:


Have you actually ever *been* to a Costco? Or, are the ones in your part
of the world NOT as friendly as ours?

Actually I was a Costco member for a while some years back-- but once I
found out that Jim Sinegal was a co-founder and CEO at the time, I
returned my card and got a refund on my membership fee.

--
There are two ways to conquer and enslave a country. One is by the
sword, the other is by debt.
- John Adams

On 1/6/2016 6:47 PM, Wade Garrett wrote:
On 1/6/16 11:16 AM, Don Y wrote:
On 1/6/2016 7:18 AM, Wade Garrett wrote:


Have you actually ever *been* to a Costco? Or, are the ones in your part
of the world NOT as friendly as ours?

Actually I was a Costco member for a while some years back-- but once I
found out that Jim Sinegal was a co-founder and CEO at the time, I
returned my card and got a refund on my membership fee.


Who? What?

-
..
Christopher A. Young
learn more about Jesus
.. www.lds.org
..
..

On Tue, 05 Jan 2016 19:43:03 -0600, Ed Pawlowski wrote:

Newer cars have a TPMS and warn you when the pressure gets low. Now that
cold weather is here,check to see that your tire is at least the
recommended pressure. I forgot about it and this morning it was 7
degrees. One tire was 1 pound under and set off the warning. It would
not reset after driving as it had to come up even more than driving did.
Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

I had the same thing over New Years. The little screen with the
odometer
kept running a message to check tire pressure. The tire shaped orange
thing
on another part of the instrument panel wasn't enough warning. It was
several
weeks since I drove my Frontier. All four were a bit low.
Aluminum wheels can also cause pressure loss. I guess the aluminum
oxidizes breaking the tight seal between tire and rim. I've had it
happen a couple times on my car.


--
Using Opera's mail client: http://www.opera.com/mail/

In article op.yasrarc96w0fur@deans-air,
"Dean Hoffman" wrote:

On Tue, 05 Jan 2016 19:43:03 -0600, Ed Pawlowski wrote:

Newer cars have a TPMS and warn you when the pressure gets low. Now that
cold weather is here,check to see that your tire is at least the
recommended pressure. I forgot about it and this morning it was 7
degrees. One tire was 1 pound under and set off the warning. It would
not reset after driving as it had to come up even more than driving did.
Filled it up when I got home.

Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

I had the same thing over New Years. The little screen with the
odometer
kept running a message to check tire pressure. The tire shaped orange
thing
on another part of the instrument panel wasn't enough warning. It was
several
weeks since I drove my Frontier. All four were a bit low.
Aluminum wheels can also cause pressure loss. I guess the aluminum
oxidizes breaking the tight seal between tire and rim. I've had it
happen a couple times on my car.

I have no idea of the tire problems, but Aluminum oxidizes (rusts) as
soon as it hits air, and then wouldn't the wheels be fully oxidized
before the tire was even put on?

--
charles

On 01/05/2016 06:43 PM, Ed Pawlowski wrote:
Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

The rims I have the studs mounted on don't have the sensors so the
yellow light is on all winter. I find it very easy to ignore, but if it
really bothers you try about 1/2" of electrical tape.

On Tue, 05 Jan 2016 21:24:28 -0700, rbowman wrote:

On 01/05/2016 06:43 PM, Ed Pawlowski wrote:
Not a major deal as I knew the pressure was adequate to drive, but it
annoys me to have that yellow light on when driving. I understand this
is a common happening for the first really cold snap.

The rims I have the studs mounted on don't have the sensors so the
yellow light is on all winter. I find it very easy to ignore, but if it
really bothers you try about 1/2" of electrical tape.

I dont know where those sensors are located or how they connect from a
rotating tire to a wire???? I never had a car with them, and hope not to
ever have one. Just sounds like more worthless **** to cause problems.

However, I'd guess that wherever they connect to a wire, you can
probably just ground the wire to turn off the light.

On Wed, 06 Jan 2016 03:49:41 -0600, wrote:



I dont know where those sensors are located or how they connect from a
rotating tire to a wire???? I never had a car with them, and hope not to
ever have one. Just sounds like more worthless **** to cause problems.


They can be quite handy to have. Tires, especially low profile don't
always tell you the actual pressure from appearance and I don't know
anyone that checks with a gauge every day. I had one go off on my
last car so I added some air. Next day, the tire did not look low,
but it was. The light tipped my off. Rather than put in more air I
went to the tire guy and he pulled out a big nail.

On Wed, 06 Jan 2016 07:54:34 -0500, Ed Pawlowski wrote
in

On Wed, 06 Jan 2016 03:49:41 -0600, wrote:



I dont know where those sensors are located or how they connect from a
rotating tire to a wire???? I never had a car with them, and hope not to
ever have one. Just sounds like more worthless **** to cause problems.


They can be quite handy to have. Tires, especially low profile don't
always tell you the actual pressure from appearance and I don't know
anyone that checks with a gauge every day. I had one go off on my
last car so I added some air. Next day, the tire did not look low,
but it was. The light tipped my off.

Yeah, that's something else I noticed about the low-profile tires. I
really don't like them at all. Any opinions as to why manufactures
switched to them? I'm guessing they are cheaper.
--
Web based forums are like subscribing to 10 different newspapers
and having to visit 10 different news stands to pickup each one.
Email list-server groups and USENET are like having all of those
newspapers delivered to your door every morning.

CRNG wrote: "Yeah, that's something else I noticed about the low-profile tires. I
really don't like them at all. Any opinions as to why manufactures
switched to them? I'm guessing they are cheaper. "


#1. Looks

#2. Some handling advantages. Mainly better 0-60
starts.

A disadvantage of lower/wider tires is that they
require more aggressive alignment settings than
do narrower higher profiles to keep them going
in a straight line. Narrow tall tires concentrate
more weight in a straight-ahead, which naturally
straightens them out from a turn with less Caster
angle, for example. They also eat through snow
and ice more readily than those fat, tall wagon
wheels I see nowadays.

On Wed, 06 Jan 2016 08:29:04 -0600, CRNG
wrote:

On Wed, 06 Jan 2016 07:54:34 -0500, Ed Pawlowski wrote
in

On Wed, 06 Jan 2016 03:49:41 -0600, wrote:



I dont know where those sensors are located or how they connect from a
rotating tire to a wire???? I never had a car with them, and hope not to
ever have one. Just sounds like more worthless **** to cause problems.


They can be quite handy to have. Tires, especially low profile don't
always tell you the actual pressure from appearance and I don't know
anyone that checks with a gauge every day. I had one go off on my
last car so I added some air. Next day, the tire did not look low,
but it was. The light tipped my off.

Yeah, that's something else I noticed about the low-profile tires. I
really don't like them at all. Any opinions as to why manufactures
switched to them? I'm guessing they are cheaper.


No. they are more expensive. They install them because people think
they are "sporty" Big honking "DUB" style rims with low profile tires
give you a more "direct" steering feel because the sidewalls don't
flex as much (is the theory). The reduced sidewall comliance makes
them ride like a plank wagon (is the reality), and any time you hit a
pothole at any speed they get to sell you a new tire AND rim because
the tire cannot protect the rim.

On 1/6/2016 5:54 AM, Ed Pawlowski wrote:
On Wed, 06 Jan 2016 03:49:41 -0600, wrote:

I dont know where those sensors are located or how they connect from a
rotating tire to a wire???? I never had a car with them, and hope not to
ever have one. Just sounds like more worthless **** to cause problems.

They can be quite handy to have. Tires, especially low profile don't
always tell you the actual pressure from appearance and I don't know
anyone that checks with a gauge every day. I had one go off on my
last car so I added some air. Next day, the tire did not look low,
but it was. The light tipped my off. Rather than put in more air I
went to the tire guy and he pulled out a big nail.

+1

Out of the showroom, one tire showed a very slow "loss in pressure".
Could have been a defective transducer. But, more likely a rim leak, etc.

Brought car in to dealer ("Hey, YOUR TPMS is telling us the tire is losing
pressure; it's not my mishandling of a tire gauge!"). Initial test
showed the tire as good. Our insistence caused them to look at it longer.
Lady tech was tickled when she found it. Replaced the tire. No problems
in the months since then.