Seasonal tire storage done right preserves their condition and extends their life. A few minutes of preparation before putting tires away pays off when you need them again.
Before putting tires away for the season, give each one a thorough cleaning. Use soap and warm water — a stiff brush works well for getting into the tread grooves. Avoid petroleum-based cleaners or silicone tire shines; these products can actually accelerate the breakdown of rubber compounds over time rather than protecting them. Once washed, allow the tires to dry completely before bagging or stacking. Moisture trapped against the rubber during storage can promote mold and contribute to early aging.
Where you store tires matters as much as how you store them. The ideal location is cool, dry, and dark — a climate-controlled garage, basement, or storage room. Avoid areas that get direct sunlight or experience wide temperature swings, as heat and UV radiation are the primary drivers of rubber degradation. Keep tires away from electric motors, furnaces, sump pumps, and compressors, which generate ozone that attacks rubber over time. Similarly, avoid storing tires near solvents, lubricants, or fuels.
Proper positioning during storage depends on whether the tires are still mounted on wheels. Mounted tires can be stacked horizontally or hung on a wall-mounted tire rack — both methods distribute pressure evenly. Unmounted tires should be stored upright, standing on their tread rather than lying flat. Laying an unmounted tire flat puts prolonged stress on the sidewall at the contact points. For long-term storage, rotate upright tires a quarter turn every four to six weeks to prevent flat spots from developing at the contact point. Placing each tire in a large, airtight plastic bag before storage helps limit oxygen and ozone exposure, which meaningfully slows the aging process.
