(C) Dual Tire Maximum Load: Maximum load that canbe carried and the maximum pressure needed tosupport that load when used in a dual configuration.(D) DOT (Department of Transportation): TheDepartment of Transportation (DOT) code indicates thatthe tire is in compliance with the U.S. Department ofTransportation Motor Vehicle Safety Standards.(E) Tire Identification Number (TIN): The letters andnumbers following DOT code are the Tire IdentificationNumber (TIN). The TIN shows the manufacturerand plant code, tire size, and date the tire wasmanufactured. The TIN is molded onto both sides ofthe tire, although only one side may have the dateof manufacture.(F) Tire Ply Material: The type of cord and number ofplies in the sidewall and under the tread.(G) Single Tire Maximum Load: Maximum load thatcan be carried and the maximum pressure neededto support that load when used as a single. Forinformation on recommended tire pressure seeInflation - Tire Pressure on page 5-65.Tire SizeThe following illustration shows an example of a tire size.(A) P-Metric Tire: The United States version of ametric tire sizing system. The letter P as the firstcharacter in the tire size means a passenger vehicle tireengineered to standards set by the U. S. Tire andRim Association.(B) Tire Width: The three-digit number indicates thetire section width in millimeters from sidewall to sidewall.(C) Aspect Ratio: A two-digit number that indicatesthe tire height-to-width measurements. For example, ifthe tire size aspect ratio is 60, as shown in item C of theillustration, it would mean that the tire’s sidewall is60 percent as high as it is wide.5-61
