While tires typically lasted about 20,000 miles in 1970, some long-lasting tires now last up to 80,000 miles, according to HowStuffWorks. Driving style, road conditions and proper maintenance all affect the longevity of tires.
The longevity of tires is also affected by the temperature, the tire pressure, the frequency of tire rotation, the proper loading of the vehicle and the tire's rating. In addition, it is important to pair tires of approximately the same age on the same axle for proper wear. Maintaining proper tire pressure and avoiding road hazards that can harm tires are vital to lengthening a tire's usefulness.