RE: Nitrogen in the tires
Long thread on this a while back. Bottom line: Air is already 78% Nitrogen,
21% Oxygen, 1% 'Stuff'. Going to Nitrogen only, often referred to as 'Dry
Nitrogen' because it is, as it comes out of the bottle, eliminates the
moisture inside the tire. This minimizes the pressure change when the tire
is hot. No Oxygen also means less oxidation of the rubber inside, but a
trivial effect opposed to the pressure problem. Nitrogen has been used for
years in race car tires.....