2004 Saab 9-3 Owner's Manual - Page 240

240 Car care Tire Terminology and Definitions Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight: This means the combined weight of optional accessories, for example, automatic transmission, power steering, power brakes, power windows, power seats, radio and air conditioning. Aspect Ratio: The relationship of a tire´s height to its width. Belt: A rubber coated layer of cords that is located between the plies and the tread. Cords may be made from steel or other reinforcecing materials. Bias Ply Tire: A pneumatic tire in which the ply cords that extend to the beads are laid at alternate angles substantially less than 90 degrees to the centerline of the tread. Cold Inflation Pressure: The amount of air pressure in a tire, measured in pounds per square inch (psi) or kilopascal (kPa), before a tire har built up heat from driving. See "Inflation - Tire Pressure" on page 231. Curb weight: This means the weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil and coolant, without passengers and cargo. DOT Markings: A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S. Department of Transportation motor vehicle safety standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also indentify the tire manufacturer, production plant, brand and date of production. GVWR: Gross Vehicle Weight Rating see "Loading Your Vehicle" on page 240. GAWR FRT: Gross Axle Weight Rating for the front axle, see "Loading Your Vehicle" on page 269. GAWR RR: Gross Axle Weight Rating for the rear axle, see "Loading Your Vehicle" on page 240. Intended Outboard Sidewall: The side of an asymmetrical tire that must always face outward when mounted on a vehicle. Kilopascal (kPa): The metric unit forair pressure. There are 6.9 kPa to one psi. Light Truck (LT-Metric) Tire: A tire used on light duty trucks and some multipurpose passenger vehicles. Load Index: An assigned number ranging from 1 to 279 that corresponds to the load carrying capacity of a tire. Loading Your Vehicle This is an example of what your vehicle´s Tire-Loading Information/Certification label might look like. It is located on the B-pillar and shows how much weight your vehicle may properly carry. The label tells you the proper size, and recommended inflation pressures the the tires on your vehicle. It also gives you important information about the number of people that can be in your vehicle and the total weight that you can carry. This weight is called the Vehicle Capacity Weight, and includes the weight of all occupants, cargo and all nonfactoryinstalled options.