tire pressure - Printable Version
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tire pressure - RPM - 04-03-2008
[quote name='Cloud9...68' post='50327' date='Apr 3 2008, 07:49 PM']Anchorman, thanks for bringing some sanity into this argument. Yes, a gas is a gas is a gas, as far as the reaction to temperature, which is the main thing we're concerned about in a tire. I suppose if you take things to the nth degree, as in a top-tier race car, *maybe* things like the condensation factor will come into play, but for 99.99999% of the drivers under 99.9999% of condtions (including track events), this nitrogen stuff, if you'll pardon the expression, is a bunch of hot air. That, and a way to pry open your wallet a tad more.[/quote]
That is sort of my take. My guy filled the new tires with nitrogen, so I'll take it. But I carefully check my tire pressure at every fill up, always have. I gave my daughter a pink tire gauge and she uses it... occasionally. So it is no great advantage for me. I'll probably keep checking occasionally - as I never studied law.
I am surprised by how many people at work (where I am the car guy) have asked me about nitrogen plans offered/pushed by dealers for up to $79.99 for a couple of years. My first instict is to laugh and say no. But if the price is more reasonable, and I suspect the person asking has never seen a tire gauge, I usually tell them to do it.
tire pressure - Cloud9...68 - 04-03-2008
But there's absolutely NO reason nitrogen will leak any slower than air. As Flash points out, air is already 78% nitrogen, and of the remaining 22%, nearly 21% is oxygen. The size of an oxygen and a nitrogen molecule are virtually identical, so neither will leak more than the other. I'm the world's biggest believer in free enterprize, but these "nitrogen plans" are really a rip-off. Guys, save your money, and stick with air.