OCR Text |
Show HEAT AFFECTS TIRE OF AUTO High Running Speed Lessens Les-sens Mileage Because of Temperature A high grade tire on a racing car will sometime stand up as far as 500 miles about one-twentieth of tho life of a tire operated under ordinary conditions con-ditions This difference In tire ser-vlce ser-vlce Is due directly to a dlfforonce In the heat developed, says the United Slates Tire company. Heat exerts a deteriorating effect on rubber In proportion to the Intensity and length of time tho rubber Is exposed ex-posed to it. Running at high speed quickly raises the temperature of a tire. This heat results from tho internal in-ternal friction set up in the tire carcass. car-cass. Ires are designed to resist the effects of heat produced by ordinary every-day car operation, but the cannot can-not long remain Intact when highly heated bv continuous speeding. The tire bills of the speeder are likely to be higher than those of the driver who proceeds at a moderate pace. |