Trying come make sense of the jumble of numbers and letters ~ above a tires sidewall? We"ll explain!


Each of her tires has useful information molded right into its sidewall. You"ll discover the tire"s brand, size, building details, maximum load and inflation pressure, and traction, treadwear and temperature grades. The trick is learning where to look. The diagram listed below will aid you make sense of your tire"s sidewall:


Passenger Tires

The tires sidewall shown over is an example of a famous "P-metric," speed-rated tire. "P" shows that it"s a passenger tire; 215 represents the width of the tire in millimeters; "65" is the elevation to broad ratio; "R" shows radial construction; "15" is the rim diameter code; and also "95H" is the optional organization description that is composed of the load index (95) and the "H" rate rating. "Temperature A" reflects the temperature grade.

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Some enlarge speed-rated tires may include the speed symbol immediately before the "R" instead of providing a organization description. A "B" in place of the "R" would show diagonal bias construction. "M+S" through the mountain/snowflake symbol suggests that the tire meets the RMA (Rubber Manufacturers Association) specifications for usage in severe snow conditions.

The maximum fill recommendation is presented in kg (kilograms) and in lbs (pounds), and the preferably air press is shown in kPa (kilopascals) and PSI (pounds per square inch). Safety Note: These room the best air press levels, not the recommended press for the tire when mounted on rims for her vehicle. The vehicle manufacturer"s push recommendations (found ~ above a decal top top the doorjamb or in the gloves compartment) must always be provided when inflating your tires.

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The period Code and also Your Safety

The "DOT" letters suggest manufacturing compliance with all applicable security standards established by the U.S. Department of transportation (DOT). Beside the DOT letter is one alpha/numeric serial number, typically referred to as the period Code, v up to 12 digits. This code provides manufacturer detail and also the last 5 numbers indicate the week and also year the the tires was made. Because that example, "1501" shows that the tire was manufactured throughout the 15th main of year 2001. This details is an important should there ever before be proof of a manufacturing problem and a tire recall. Us encourage girlfriend to it is registered your tires so the manufacturers can contact you in the instance of a recall.

Additional tires Size and Capacity Information

There are other codes on some tires that provide you with extr information, few of which are specific to light truck tires applications. Several of the various other codes that you could find on your tires include:

LT = represents light van application. Example: LT235/85R16 C, D or E = Load range indication because that light van applications REIN = Reinforced OWL = Outlined White letters RWL = increased White letters ORWL = Outlined elevated White letter B, BLK, BW, BSW = Blackwall or black Sidewall W, WW, WSE = Whitewall or White Sidewall XNW = Extra small White broad XL = Extra load Capacity