Store tires in a cool, dry, dark and moderately ventilated area. The storage temperature should not vary in an extreme way but keep a level below 25° C / 77° F. Direct contact with pipes and radiators must be avoided. Ozone will accelerate tire aging, therefore do not store tires near electric motors or other equipment, which may produce sparks or other electrical discharges because this produces a higher concentration of ozone. Contact with oil or gasoline may cause contamination of the rubber compound making the tire unsuitable for use. Wipe off any oil or gasoline immediately with a clean rag .