A flat tire is never convenient, and when it happens, most drivers rely on a spare to get back on the road. But how long is it safe to drive on a spare before replacing it with a full-size tire?
The answer depends on the type of spare tire and driving conditions. Understanding the limitations of spare tires and when to replace them is important for safety and vehicle performance.
If you’re currently driving on a spare or need a new tire, shop for replacement tires or schedule an appointment at Old Ox Tire & Auto in Washington, DC.
Types of Spare Tires and Their Limits
Not all spare tires are the same. The type of spare determines how far and how fast you can safely drive.
Donut (Temporary) Spare Tires
Many vehicles come equipped with a compact spare, often called a donut spare. These are designed for short-term use only.
- Maximum Distance: 50 to 70 miles
- Maximum Speed: 50 mph
Donut spares are smaller and have less tread than standard tires, making them more vulnerable to road hazards and less effective in wet or icy conditions. It is recommended that donut spares be replaced with full-size tires as soon as possible. A new tire can be selected and installed at Old Ox Tire & Auto in Washington, DC.
Full-Size Spare Tires
Some trucks and SUVs come with a full-size spare tire that matches the original set. These provide better performance than donut spares but should still be used as a temporary solution.
- Maximum Distance: Varies (depends on tread wear and age)
- Maximum Speed: Normal highway speeds
If the spare tire is a different model or has uneven tread wear compared to the other tires, replacing it with a matching set ensures consistent handling and safety.
Run-Flat Tires
Some newer vehicles come equipped with run-flat tires, which allow limited driving even after a puncture. These have reinforced sidewalls to provide support when losing air pressure.
- Maximum Distance: 50 to 100 miles
- Maximum Speed: 50 to 55 mph
Run-flat tires are meant for emergencies only and should be replaced or repaired as soon as possible.
Why Driving on a Spare for Too Long is Risky
Spare tires are not designed for extended use. Delaying a proper tire replacement can lead to several risks.
Reduced Traction and Handling
Spare tires, especially donut spares, have less tread, which leads to lower grip and stability. Using a spare can also make wet or slippery roads more dangerous.
Increased Wear on Other Tires and Suspension
Driving on a spare for too long can throw off the vehicle’s balance, putting stress on the suspension, brakes, and alignment. Uneven tire wear may also result, leading to additional repairs.
Higher Risk of Blowouts
Donut spares are not built for long-term durability. Extended use increases the chances of tire failure, which can be hazardous at higher speeds.
What to Do If Driving on a Spare Tire
If a spare is currently in use, follow these steps to maintain safety and avoid damage to the vehicle:
- Check tire pressure – Spare tires often lose air faster than regular tires. Keep it properly inflated.
- Drive cautiously – Avoid high speeds, sudden stops, and rough roads.
- Replace the spare as soon as possible – Spares are designed for emergencies, not for extended use.
A replacement tire can be selected and installed at Old Ox Tire & Auto in Washington, DC.
Get a New Tire in Washington, DC
Driving on a spare for too long can put the vehicle and passengers at risk. Whether a new tire, a tire repair, or wheel alignment is needed, professional service is available.
Old Ox Tire & Auto – Washington, DC
Auto Repair in Washington, DC
3426 18th St NE, Washington, DC 20018
Phone: 202-481-0685