How Far Can You Drive on a Spare Tire?

A flat tire rarely happens at a convenient time. Once the spare is on, the next question is usually how far it can take you. The answer depends on which kind of spare is in your trunk. A compact temporary spare, often called a donut, is built to get you to a repair shop and not much farther. A full-size spare gives you more room to work with, but it still deserves attention before you treat it like any other tire.

Here is what to know about distance, speed, and safety before you get back on the road.

Spare Tire Distance and Speed Limits at a Glance

The figures below are general guidelines. Your owner's manual and the sidewall of the spare itself list the exact limits for your vehicle, and those always take priority.

Spare type	Typical distance limit	Typical speed limit	Best used for
Compact temporary spare (donut)	About 50 miles, up to 70 on some vehicles	50 mph	Reaching the nearest repair shop
Full-size matching spare	No fixed limit if in good condition	Normal highway speeds	Regular driving, once pressure and condition are confirmed
Full-size non-matching spare	Short term only	Follow sidewall and manual	Getting by until the original tire is repaired or replaced
Run-flat tire (after a puncture)	About 50 miles	50 mph	Vehicles sold without a spare

How Far Can You Drive on a Donut Spare?

Most automakers advise driving no more than 50 miles on a donut spare and keeping your speed at or below 50 mph. Some vehicles allow up to 70 miles, but that is an upper limit and not a target. The limits are usually printed on a bright label on the spare's wheel or molded into the sidewall.

Think of a donut as a one-trip tire. It is meant to carry you from the shoulder of the road to a tire shop, not through a week of commuting. If the closest shop is 15 miles away, drive those 15 miles and stop there. Every additional mile wears down a tire that has very little tread to begin with.

If you are farther than 50 miles from help, plan a route with a stop at the closest service location rather than pushing through to your destination.

How Far Can You Drive on a Full-Size Spare?

A full-size spare that matches your other three tires in size, type, and construction can generally be driven like a regular tire. There is no set mileage cap, provided the spare is properly inflated and in sound condition.

There are a few catches worth knowing:

• Age matters as much as tread. A spare can look new and still be ten years old. Rubber breaks down over time, even when the tire is never used. Many tire makers recommend replacing any tire that is six to ten years old, regardless of tread depth.
• Tread depth may not match. A brand-new spare paired with three worn tires creates a difference in diameter. That can affect handling and, on all-wheel-drive vehicles, put extra strain on the drivetrain.
• Some full-size spares are not true matches. A spare on a plain steel wheel or with a different tread pattern is intended as a temporary fix, even though it is full size.

If your full-size spare is a true match and passes inspection, consider working it into your tire rotation going forward so that all five tires wear evenly.

Why Temporary Spares Have Limits

Donut spares exist to save trunk space and weight. Those savings come with real trade-offs in how the tire performs.

Smaller Size and Reduced Traction

A donut is narrower and often smaller in diameter than your regular tires. The narrow tread puts less rubber on the road, which means less grip. The tread itself is shallow and simple, without the grooves and siping that help a standard tire channel water and hold the pavement.

The size difference also means the spare spins faster than the other three tires to cover the same distance. On vehicles with all-wheel drive or a limited-slip differential, that speed difference can cause extra wear if the spare stays on for too long.

Heat Buildup and Tread Life

Because a donut is small and spins faster, it generates more heat than a standard tire. Its lightweight construction does not shed that heat well. Higher speeds and longer distances raise the temperature further, which increases the risk of tire failure.

The tread on a temporary spare is also thin. It is designed to last for a short trip, not thousands of miles. Driving past the recommended distance can wear it down to the point where it is no longer safe to use again.

Effects on Braking and Handling

With one tire that is smaller and has less grip, your vehicle will not respond the way you are used to. You may notice:

• Longer stopping distances
• A pull toward the side with the spare, especially under braking
• Less stability in corners and during quick lane changes
• Traction control or ABS warning lights, since the spare turns at a different speed than the other wheels

These effects are manageable at lower speeds, which is one reason the 50 mph limit exists.

Safe Driving Tips With a Spare Tire

A few adjustments will help you reach the shop safely:

• Stay at or below 50 mph. Use the right lane on the highway, or take surface streets when you can.
• Leave extra following distance. Give yourself more room to stop than you normally would.
• Brake and steer gently. Avoid hard stops, sharp turns, and sudden lane changes.
• Skip heavy loads and towing. A temporary spare is not rated for the extra weight.
• Check the pressure first. Most donut spares call for 60 psi, well above a standard tire. A spare that has sat in the trunk for years is often low.
• Tighten the lug nuts properly. Snug them in a star pattern, then check them again after a few miles.
• Go straight to a repair shop. Running errands on the way adds miles the spare was not built for.

Can You Drive on a Spare in Rain or Snow?

You can, but only with added caution and only as far as you need to. A donut's narrow, shallow tread has a harder time clearing water, so the risk of hydroplaning goes up in the rain. On snow and ice, it offers very little grip.

If you have to drive on a temporary spare in bad weather:

• Drive well below the 50 mph limit
• Double your following distance
• Brake early and gradually
• Avoid standing water, slush, and unplowed roads where possible

Placement of the spare can also matter. Some owner's manuals recommend keeping a temporary spare off the drive wheels in slippery conditions, which may mean moving a full-size tire from the other axle to the drive axle and mounting the spare in its place. Check your manual for guidance specific to your vehicle. If conditions are severe, calling for roadside assistance or a tow is the safer choice. Meineke Rewards is free and its members can use free towing to get their vehicle to a nearby Meineke rather than risk driving in unsafe conditions.

What to Check Before Using a Spare

The best time to inspect your spare is before you need it. Take a few minutes every few months, and before any long trip, to look at the following:

• Air pressure. Compare it to the number on the spare's sidewall or the placard in your driver's door jamb. Spares lose air over time, just like any other tire.
• Sidewall condition. Look for cracks, bulges, or dry rot. Any of these means the spare should be replaced.
• Tread. Check for uneven wear, embedded objects, or tread that is worn close to the wear bars.
• Age. Find the DOT code on the sidewall. The last four digits show the week and year the tire was made. For example, 2319 means the 23rd week of 2019.
• Tools. Confirm the jack, lug wrench, and wheel lock key (if your vehicle uses one) are all in the vehicle and in working order.
• Whether you have a spare at all. Many newer vehicles come with a sealant and inflator kit or run-flat tires instead of a spare. It is better to find that out in your driveway than on the roadside. If your vehicle does not have a spare, Meineke Rewards free towing can help get you and your vehicle to a nearby Meineke for service.

Repair or Replace the Original Tire Promptly

A spare tire solves the immediate problem, but it is not the fix. The sooner your original tire is repaired or replaced, the sooner your vehicle is back to its normal braking, handling, and traction.

Some punctures can be repaired. A small puncture in the tread area is often a good candidate for a proper plug-and-patch repair. Damage to the sidewall or shoulder, large punctures, and tires that were driven on while flat usually call for replacement. A technician needs to remove the tire from the wheel and inspect the inside to know for sure.

After the repair or replacement, ask the shop to check the spare's pressure and condition before it goes back in the trunk, so it is ready for next time.

If you are riding on a spare right now, stop by your local Meineke. Our technicians can inspect the damaged tire, let you know whether it can be repaired, and help you find the right replacement if it cannot. Find a Meineke near you and get back on the road with confidence.

Frequently Asked Questions

Can I drive on a spare tire for a week?

Not on a donut spare. A compact temporary spare is designed for about 50 miles of driving, which most people would exceed within a few days of normal use. A full-size matching spare in good condition can be driven longer, but you should still have the original tire repaired or replaced promptly so you are not left without a backup.

Can I drive on the highway with a donut spare?

You can, as long as you stay at or below 50 mph and keep to the right lane. If the speed limit is well above 50 mph and traffic is heavy, surface streets are usually the safer route.

What happens if I drive more than 50 miles on a donut?

The thin tread wears down quickly and the tire builds up heat, which raises the risk of a blowout. Extended driving on a smaller spare can also put extra strain on your differential and affect your brakes and traction control.

How long does an unused spare tire last?

Rubber ages even when a tire is never driven on. Many tire manufacturers recommend replacing a spare that is six to ten years old, regardless of how it looks. Check the DOT date code on the sidewall to find out when yours was made.

What tire pressure should a spare tire have?

Most compact temporary spares require 60 psi, which is much higher than a standard tire. A full-size spare usually takes the same pressure as your other tires. The correct figure is printed on the spare's sidewall and on the placard in your driver's door jamb.

Can I put a donut spare on the front of my car?

It is best to check your owner's manual. On many front-wheel-drive vehicles, the front tires handle most of the steering, braking, and power, so some manufacturers recommend moving a full-size rear tire to the front and mounting the donut on the rear.