On 11/07/2014 10:25 AM, SMS wrote:
On 11/6/2014 11:11 AM, dpb wrote:

snip

It's those secondary effects that are the only real benefits that is why
for ordinary application in passenger car/light trucks it's _way_
overkill in that there just won't be any discernible symptoms that it
cures that ordinary care and maintenance don't resolve, anyway.

That's the whole point of nitrogen. It cures, at least partially, the
symptoms that the lack of ordinary care and maintenance would otherwise
cause.

How many people do you EVER see checking their tire pressure these days?
They don't. If the TPMS light comes on they may take some action. Losing
even 1 PSI per month will trigger the TPMS after a few months. With
nitrogen that could take more than a year.

Costco includes nitrogen because of their own self interest. It reduces
warranty costs, both for road hazard and treadwear. It stops customers
from constantly coming back with TPMS warning lights on, saving labor
costs.

As noted above, I'd have to see data that proves they can tell a
difference--just color me skeptical at best that it really makes a
discernible difference that can be solely attributed to N.

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