How Often Should a Spare Tire Be Replaced?
2 Answers
Spare tires should be replaced every four years. Since tires are rubber products, prolonged storage can lead to aging. Spare Tire Aging Period: Spare tires should be replaced after a certain period. Generally, the aging period for tires is around four years, so spare tires should be replaced after this time. Reasons for Replacing Spare Tires: Tires are rubber products, and prolonged storage can cause aging. Due to infrequent use, the tread of a spare tire tends to be newer and harder, with less flexibility compared to regular tires. Additionally, spare tires often have lower air pressure. The issue is more pronounced with winter tires—if the other three tires are snow tires while the spare is a standard all-season tire, the difference in traction performance becomes significant. This creates an imbalance in the vehicle, making it prone to delayed control responses at higher speeds, which can compromise driving safety.
A spare tire isn't meant for permanent use. Having driven for decades, I know it's just a temporary lifeline. Usually hidden in the trunk, the spare tire is easily overlooked, but it can still age—rubber may crack or deform after five to ten years, even if never used. I recommend checking its pressure and wear every six months, like during an oil change. If your car is often parked in harsh sunlight or rain, aging accelerates; also, watch the spare's valve core for leaks. If you have to use a compact spare after a flat, remember it's limited to about 50 miles at reduced speed—replace it with a proper tire ASAP. Don't cut corners on safety; it's not worth the risk.
