merrill@raja.DEC (10/24/85)
Putting the car weight on the tires both flattens the tire and puts more pressure on the outside of the tire until the area on the ground times the pressure in the tire equals the weight that it supports. PV=NRT will let you calculate the decrease in volume when the pressure increases. The "recommended pressure" for a tire is given for a tire under nominal load. Sometimes both a "light" pressure and a "fully loaded" pressure is recommended for rear wheels. i.e. measure pressure with the car on the ground. Rick Merrill (Anyone remember what LS=MFT means? :-))