Some tires list 44 psi and many higher speed tires will list 50-51 psi. The maximum allowed pressure listed on a tire's sidewall can be higher however. Light and Standard Load tires have a maximum capacity pressure rating of 35-36 psi and Extra load tires have a maximum capacity pressure rating of 41-42 psi. However, they have added load capacity above certain pressures. Passenger tires will be rated Light Load (LL), Standard Load (SL), or Extra Load (XL).Įxtra Load tires of the same size will typically have the same load capacity at the same pressure as the Standard Load tire. Too little air can wear the tires unevenly on the outer edges and will reduce the tires load capacity below the engineered level.Įach tire is rated with a load range, load index number, and max pressure rating.
Too much air can wear the tires unevenly in the center and can create a wondering effect on the vehicle's handling. Tire load capacity is directly related to air pressure in the tires.Īs tire pressure goes up or down, so does the load capacity of the tire. The size and pressure have been engineered specifically by the manufacturer for correct load capacity and will typically render the best results for tire wear and ride quality. Listed inside the driver's side door jamb of your vehicle there will be the originally installed tire size, load rating, and tire pressure for the front and rear tires.
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