If all 4 tyre pressures drop due to low temperature, why not just use the compressor in your boot to quickly pump them up?
I also have a nice bicycle pump I occasionally use to pump up a tire that has lost some pressure rather than bother with the compressor.
I am curious to know if there is anyone out there that thinks nitrogen is better than air. I think nitrogen is just a marketing thing to squeeze a little more profit.
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I think nitrogen in tires is great! I happen to prefer a special, hybrid mixture of 78% nitrogen, 21% oxygen, and 1% argon...
I've heard a lot of claims why N2 is supposed to be better than air in passenger cars. I'll list them with my rebuttal of each:
1. N2, with larger molecules, permeates tires slower, so N2-inflated tires don't deflate as fast. Rebuttal: If the O2 in compressed air leaks out while the N2 remains, then after one, 5-pound-low fill up with standard air, the tires would contain about 88% N2. After two such fill ups, they would contain 97% N2.
2. N2 is dry, so when it is heated it expands less than moist air. Rebuttal: I have never experienced nor heard of a passenger car on public roads having an issue with heat related expansion. Perhaps on a track, this is a thing, but we're not talking about track day setups or cars with red hot brakes.
3. The military puts nitrogen in its aircraft tires. Rebuttal: This is true. My Tomcat used it. But, we used it because nitrogen is also used in canopy systems, hook systems, and in all the other pneumatic systems, because it is clean and dry and plentiful. There is no compressed air on the flight deck; they use N2 bottles for everything, including tires. Also, aircraft brakes get red hot, often; see number 2, above.
4 . Dry means less corrosion to the inside. Of the wheel. No rebuttal.
