How Long Can a Car's Spare Tire Last?
2 Answers
Generally, there is no strict time limit for how long a car's spare tire can be used, but it is not designed for long-term use. Non-full-size spare tires of different specifications have a maximum speed limit of under 80 km/h and should not be driven for more than about 100 kilometers. A spare tire is only intended as a temporary replacement while the original tire is being repaired or replaced. After emergency use, the spare tire should be promptly replaced with the original factory tire. A spare tire refers to the backup tire for a car, usually matching the specifications of the original car tires. However, some vehicles use spare tires with special-colored rims, compact spares, foldable spares, or run-flat tires to remind the owner to inspect and replace the faulty tire promptly.
Speaking from the perspective of an average car owner, let me share my experience on how long a spare tire can last. Spare tires are usually not full-size and are designed for emergency use only—they can't be used as long-term replacements like regular tires. Having driven for over a decade, I'd say a spare tire typically lasts about three to five years. The rubber material naturally degrades over time, so even if the tread looks new, it may eventually crack or become brittle, especially if stored in areas with significant temperature fluctuations. I recommend checking the spare tire's pressure and condition annually, and avoid storing heavy items on top of it for extended periods. Also, spare tires usually have a speed limit of around 80 km/h or lower, so don't push it on highways. After using the spare, get the original tire repaired as soon as possible—long-term use of a spare is risky. Always check your vehicle's manual for specific recommendations, as following those is the safest approach.
