A donut tire is a small spare tire that is used as a temporary replacement for a flat tire. Donut tires are not meant to be driven on for long periods of time or at high speeds. If you have a flat tire and need to replace it, you should only use a donut tire until you can get to a safe location to put on a regular tire.
If you are stranded on the side of the road with a flat tire, you may be tempted to put a donut tire on so you can get to a service station and have the tire repaired or replaced. However, it is not advisable to drive on a donut tire for too long. Donut tires are smaller than regular tires and are not meant to be driven on for extended periods of time. They also have a lower speed limit than regular tires. Driving on a donut tire for too long can damage the tire and the wheels. If you must drive on a donut tire, drive slowly and carefully to avoid damaging the tire or the wheels.
If you have a flat tire, the best course of action is to call a tow truck or a friend with a truck so you can get the tire repaired or replaced as soon as possible. Driving on a donut tire for a long period of time is not advisable and can damage the tire and the wheels.