On 08/12/2019 12:11, Jeff Layman wrote:
On 08/12/19 11:55, Dave Plowman (News) wrote:
In article ,
Â*Â*Â* Brian Reay wrote:
I bought an electronic gauge from Halfords which has an impressive spec
(I forget the details). Assuming it is as good as its spec, the various
gauges on the 'cheap' compressors I've compared it with are pretty
hopeless. I have an attachment for my 'full size' compressor which is
like those you sometimes find in garages etc. It is pretty good although
the scale is so small it is rather hard to be sure.

I've got lots of various gauges. But the older pop out type not so
easy to
read as a decent digital one. Digital one I use now wasn't cheap and
actually gave its spec. Of course, not easy to check.

(My problem was the pressure I need- one vehicle requires 80psi on the
rear tyres. The small compressors just aren't up to that, at least not
in a sensible time.)

All the various compressors with built in gauges I've seen go up to
something silly for cars. Even the one supplied in my car toolkit. Reads
up to 150 psi, when the maximum pressure ever needed is 34 psi.

You've obviously never had a car with a spacesaver spareÂ* wheel. The
pressure in these is much higher - maybe 60psi. See "Compact temporary
spare" he
https://www.dunlop.eu/en_gb/consumer/learn/spare-tires.html"

What about Audi expanding spare wheels, you have to inflate it after
fitting. Trouble is the punctured wheel doesn't deflate fit the carrier
space below the boot. Big problem if you are fully loaded.
Guess how I learned this:-(

Mike