Why do race teams use Nitrogen in their tires instead of air?
Race cars, aircraft, and other ultra-high performance machines use Nitrogen in their tires instead of air because, when heated or cooled, nitrogen has a much more consistent rate of expansion and contraction than air. This is because air contains varying amounts of moisture due to changes in the relative humidity. This water vapour causes air to be inconsistent in its rate of expansion and contraction. What is the difference between an LT and P tire of the same size? LT tires that are load range C or greater tend to be rougher riding and noisier than their P-Metric counterparts and more expensive since the LTR size equivalent to the P-Metric has heavier body ply construction and the tread lugs are generally more aggressive. P and LT tires are also often rated slightly differently. If P-rated tire is used in an LT application, you need to de-rate the sidewall load capacity by 9% – 10%. How should I store unmounted tires? • Store them on their sides in a clean, cool, dry, dark, and well-
