Is the tire pressure on my truck supposed to be 35psi or 40psi?
Proper inflation is the single most important factor in tire care. The tire sidewall displays MAXIMUM pressure – based on MAXIMUM load capacity of the tire. The inflation pressure displayed on the door jamb is the RECOMMENDED pressure – based on normal load of a passenger car and MAXIMUM load capacity of a pick-up truck. While a single pressure setting may be okay for a passenger car, pick-up trucks by nature (especially 3/4- and 1-ton) vary greatly in weight. The recommended pressure setting for a loaded truck will result in a grossly overinflated tire when the truck is not loaded. Always check inflation when tires are COLD, that is when the vehicle ahs been driven less than a mile, or at least one hour or more after driving. Use a good quality tire pressure gauge. Note: It is natural for radial tires to have a slight bulge in the sidewall at their proper inflation pressure. Check inflation at least once a month and before any long trip or before traveling with a heavy load. Always re
