Driving on a spare tire is one of those situations no one plans for, yet every driver should be prepared for. Whether you’ve experienced a blowout on a rainy highway or a slow puncture in a remote area, your spare tire might be the only thing keeping you moving. However, understanding how long you can really drive on a spare tire isn’t just a question of distance—it’s about safety, vehicle type, spare tire limitations, and how smart your driving decisions are.
In this comprehensive guide, we’ll explore everything you need to know about driving with a spare tire, including the types of spare tires, recommended speed limits, driving tips, and what to do once you’ve driven on a spare tire for too long.
Types of Spare Tires and Their Limitations
Before we discuss how long you can safely drive on a spare tire, it’s crucial to understand the different types of spare tires and their specific limitations.
Full-Size Spare Tires
A full-size spare tire is a complete, standard-sized wheel that can be used just like your regular tires. These spares are often the same size and tread type as your other tires and are intended for longer-term use. While they can be considered a more permanent solution, they still require a proper tire change and mounting by a professional over time.
Compact Spare Tires (Donuts)
The donut spare, also known as a compact temporary spare, is smaller and lighter than a regular tire. Designed solely for emergency use, these spares cannot support the same weight, speed, or driving conditions as standard tires. Most vehicle manufacturers clearly state the limitations of donut spares, which include:
- Maximum distance: typically no more than 50 to 70 miles
- Speed limits: usually capped at 50 mph
- Reduced weight capacity
If you find yourself driving with a donut spare, your best course of action is to get to a tire shop as soon as possible.
No Spare Tires (Tire Inflator Kits)
Modern vehicles, especially European makes and many electric cars, are increasingly shipped without a spare tire altogether. Instead, manufacturers often include a tire inflation kit and sealant. These temporary fixes can help you drive slowly to the nearest service center, but they’re not meant to be used for more than a few miles. Always read the vehicle owner’s manual to confirm what your car offers in emergency tire situations.
How Long Can You Drive on a Spare Tire?
Now to answer the critical question: how long can you drive on a spare tire, and in what conditions can you do so safely?
Time and Distance Considerations
The answer varies depending on the type of spare you’re using. As noted earlier, compact spares are only designed to travel 50 to 70 miles at a reduced speed. Exceeding this distance can cause:
- Overheating of the spare tire
- Structural failure due to stress
- Increased wear on your vehicle’s braking and suspension systems
Full-size spares, on the other hand, allow for longer use. However, even full spares should be replaced or inspected by a tire professional after a short period to ensure safety and performance.
Speed Limitations and Why They Matter
Manufacturers place strict constraints on driving speed when using a temporary spare tire. For donut spares, 50 mph is typically the maximum safe speed. This is because the reduced surface area and limited structural integrity of the tire cannot handle high-force impacts from highway driving, potholes, or aggressive cornering.
You should never exceed posted speed limits when using a spare tire. Not only is it unsafe, but it can void vehicle warranties and insurance claims if an accident occurs.
Factors That Influence Spare Tire Effectiveness
Before hitting the road with a spare tire, it’s wise to consider various factors that may influence your driving experience and safety.
Vehicle Type and Weight Distribution
Larger vehicles such as SUVs and trucks may handle spare tire situations differently than compact cars. SUV owners may be especially tempted to push the range of a compact spare due to driving in rugged terrain, but the same distance and speed limitations still apply.
Also, driving on a spare alters your weight distribution, which can impact overall vehicle handling, particularly on corners and during braking.
Weather and Road Conditions
Poor driving conditions such as rain, ice, and snow make driving on a spare more hazardous. Donut spares offer less traction and a reduced contact patch with the road, increasing stopping distances and the likelihood of hydroplaning.
If you’re in poor weather, consider reducing speed further and limiting spare tire use to the safest, closest route possible.
Load and Passenger Capacity
Another crucial but often overlooked factor is the vehicle’s load. Driving with full passenger load or heavy cargo can strain a donut spare tire and lead to premature failure.
Reduce vehicle load when using a spare tire, especially if it’s a donut-style compact spare.
Best Practices for Driving on a Spare Tire
Driving with a spare tire is not the same as driving normally. Follow these best practices to ensure you drive safely and arrive intact.
Maintain a Safe Speed
Stick strictly to the manufacturer’s recommended speed limits. In most vehicles, the dashboard may even display a warning sticker or an icon reminding drivers not to exceed certain speeds with a spare tire installed.
Monitor the Spare Tire’s Pressure
Spare tires, particularly compact donuts, can lose pressure more quickly due to storage conditions. Always check inflation levels before driving and during long journeys.
Plan Your Route Strategically
Avoid highways or backwoods trails if you’re on a temporary spare. Stick to city streets and main roads to reduce wear and ensure you are near tire services within a short distance.
Take Your Time
Rushing on a spare tire increases risk. It’s better to arrive late than to risk tire failure or lose control of the vehicle.
When You Must Replace Your Spare Tire
After using a spare tire, replacing it promptly is critical for continued safe driving.
What to Do After Driving on a Spare
Even if you traveled only a short distance, the next best step is to get a new or proper full-size tire mounted and balanced. Here’s a breakdown of what to do:
- Inspect the original tire to determine if it can be repaired or needs replacement.
- Have a professional technician remove the spare and check the wheel assembly for wear or damage.
- Replace the spare with a full-size tire or order a new spare to keep for future emergencies.
Can You Reuse a Spare Tire?
It’s possible to reuse a donut spare, but only if it’s in good physical condition and hasn’t been driven excessively. However, due to its small size and wear from previous use, spare tire lifespan diminishes with each use. Repeatedly using a donut or full-size spare can reduce its safety and legal usefulness.
Check Manufacturer Guidelines
Different vehicles and tire manufacturers have unique guidelines regarding spare tire replacement and use. Always refer to the vehicle’s manual for:
- Speed restrictions
- Recommended replacement timeframes
- Warnings about long-term use
Dangers of Ignoring Spare Tire Limits
Disregarding the recommended limits for driving on a spare tire can lead to serious consequences—both mechanical and personal.
Tire Blowouts and Tread Separation
Driving too fast or too far on a temporary spare puts excessive stress on the tire, increasing the risk of a sudden blowout or tread separation. These events can be fatal, especially at highway speeds.
Vehicles with Rear-Wheel Drives and Spare Placement
If your vehicle is rear-wheel drive (RWD), many mechanics recommend placing the spare on one of the rear wheels for better control. However, the exact location should follow your vehicle manual’s guidance to avoid drivetrain complications or uneven handling.
Damage to Brake Systems and Suspension
Spare tires, especially compact ones, are smaller in diameter, changing rotation speeds. This can strain your braking and suspension systems. Continuing on a donut for longer than 70 miles might cause you to notice unusual braking behavior or vibration while on the road.
Proper Spare Tire Storage and Maintaining Readiness
If you own a spare tire, particularly a full-size one, it’s just as important to maintain its condition even when it’s not in use.
Where and How to Store a Spare Tire
Most spare tires are stored in the trunk or underneath the vehicle. Ensure they’re securely fastened and free of dirt or debris. Exposed, undercarriage-mounted spares (common with SUVs) should be periodically checked for rust or corrosion.
Maintain Proper Inflation
Spare tires used infrequently have a tendency to lose pressure over time. Check them every six months to ensure they are at manufacturers’ recommended levels.
Inspect for Wear and Age
Rubber degrades over time, and even a rarely used spare can develop cracks or deformities. Replace it every 6 to 10 years regardless of use.
What to Do If You Have No Spare Tire
If your vehicle doesn’t have a spare and is equipped with a tire sealant and inflator, it’s important to know how to handle a flat properly.
Steps to Follow With Inflator Kits
- Park the car safely away from traffic.
- Read the instructions provided with the inflator kit carefully.
- Apply sealant to the tire and inflate it to the recommended level.
- Drive slowly (no more than 50 mph) to the nearest tire shop for a proper assessment.
Know the Limits of Inflator Kits
These kits are only intended for small punctures in the center of the tread area—they do not work for sidewall punctures, severe damage, or large holes. In such cases, contacting emergency roadside assistance is your safest option.
When in Doubt, Avoid Driving on the Spare Tire
In some situations, driving on a spare tire might not be the safest choice. Consider the following:
- You’re driving in darkness or hazardous weather
- There are young children or elderly passengers with you
- You are far from the nearest tire shop or service area
When possible, waiting for professional assistance is a more prudent path to take. It’s better to wait than to risk your safety or damage the vehicle.
How to Prevent Spare Tire Emergencies
While no one can predict when a tire will fail, regular tire maintenance can significantly reduce the risk of finding yourself stranded.
Monthly Tire Pressure Checks
Check all five tires (including the spare) at least once a month. Use a trusted tire gauge to confirm pressure levels meet manufacturer recommendations.
Visual Tire Inspections
Look for signs of wear, cracks, bulges, and embedded debris. A quick inspection can catch problems before they leave you stranded.
Tire Rotation and Alignment
Tire rotation every 5,000 to 8,000 miles helps ensure even wear and longevity. Proper alignment prevents uneven road contact that could lead to flat spots or fast wear.
Carry an Emergency Tire Repair Kit
Many vehicles now come with kits; even so, carrying a plug kit and small portable air compressor can help avoid emergencies and spare tire usage unless truly needed.
Conclusion: Safety First, Speed Second
Driving on a spare tire is always a temporary fix, never a long-term solution. Whether you’re managing a donut spare or a full-size spare tire, remember that it is only meant to get you to a safe destination, not a substitute for regular tires.
By knowing your spare tire limitations—recommended distances, speed limits, and driving conditions—you can make informed decisions when the unexpected happens.
Always prioritize safety over convenience, avoid unnecessary wear and tear on your vehicle, and take time to properly maintain or replace your spare tire even if you’ve never used it.
Remember: your tire is the only thing between you and the road, and every mile counts when it’s not the right one.
About the Author
This article was written by vehicle maintenance experts at SafeRide Solutions, a leading automotive resource committed to keeping drivers informed and safe. For more car care tips, check back often or sign up for our car safety newsletter today.
How long can you drive on a spare tire?
Driving on a spare tire, especially a donut or temporary spare, should be limited to short distances and low speeds. Ideally, you should not drive more than 50 to 70 miles on a spare tire. Most manufacturers recommend keeping your speed below 50 mph while using a spare to reduce the risk of tire failure or damage to your vehicle’s drivetrain.
These limitations are in place because spare tires are not designed to last or perform like full-size tires. They typically have less tread, a different construction, and are smaller in size, which makes them unsafe for prolonged driving. After using a spare tire, it’s important to replace it with a full-sized tire as soon as possible to ensure your vehicle maintains optimal performance and safety.
Why can’t you drive long distances on a spare tire?
Spare tires, particularly temporary spares or “donuts,” are engineered with minimal weight and materials to save space and are not built for endurance. They have a much smaller contact patch with the road, less tread depth, and are not reinforced the same way as regular tires. Driving on them over long distances increases the risk of overheating, structural failure, and reduced traction, especially during sudden maneuvers or in poor weather conditions.
Additionally, using a spare tire for an extended period affects your vehicle’s alignment, suspension, and braking system due to its smaller diameter and different handling characteristics. These differences create uneven wear on other tires and mechanical components, potentially leading to costly repairs or unsafe driving conditions. Therefore, a spare tire is only for getting you to the nearest service center or tire shop.
Can you drive on a spare tire on the highway?
While you can technically drive on a spare tire on the highway, it’s important to adjust your driving habits for safety. If you must use a spare on the highway, do not exceed the recommended speed of 50 mph and be mindful of your vehicle’s reduced stability and braking performance. Highway driving at high speeds increases the likelihood of tire overheating and failure, which could lead to a dangerous situation.
If possible, avoid extended highway travel with a spare tire. If you’re planning to drive a long way or are on a highway with a high speed limit, try to plot a route that allows you to exit quickly and drive on local roads at lower speeds. This minimizes risk and ensures the spare tire can handle the journey without compromising your safety.
How do you drive safely on a spare tire?
To drive safely on a spare tire, start by reducing your speed to 50 mph or below and avoid sudden acceleration, hard braking, and sharp turns. These maneuvers place undue stress on the temporary tire and can cause it to fail unexpectedly. Pay attention to your vehicle’s handling and adjust your driving to compensate for any instability or pulling to one side.
Additionally, avoid using cruise control while driving on a spare tire. Cruise control can mask early signs of tire failure and reduce your ability to respond quickly if the spare has a problem. Also, monitor your tire pressure and check the spare’s condition regularly if you have to drive a significant distance. The goal is to minimize tire wear, reduce safety risks, and get the temporary tire replaced as soon as you can.
What are the different types of spare tires?
There are primarily three types of spare tires: full-size spare tires, temporary spare tires (also called “donuts”), and run-flat tires. A full-size spare is the same as your vehicle’s regular tires and can be used indefinitely, though it should still be inspected for wear and proper inflation. A temporary spare, on the other hand, is smaller and lighter, designed to be a short-term solution only. Run-flat tires allow you to drive a limited distance at reduced speed even with a flat, and are typically found on vehicles that don’t include a spare due to space constraints.
Each option has its own advantages and limitations. While full-size spares offer total flexibility and safety, they take up more space and add weight. Temporary spares save space but come with driving restrictions. Run-flat tires offer the convenience of continued mobility, but they can be more expensive and not all vehicles support their use. Be sure you understand your vehicle’s specific spare tire type and follow the associated guidelines for optimal performance and safety.
Should you replace your spare tire after using it?
Yes, it is crucial to replace a temporary spare tire as soon as possible after using it, ideally once you’ve reached a service station or tire shop. While some temporary spares can be reused if they are in good condition and have not reached their maximum recommended usage, they are not intended to be permanent replacements. Repeated use or prolonged travel on a donut increases the chances of tire failure and impacts the vehicle’s alignment and other components.
For full-size spare tires, it is still important to have them inspected by a professional after use. Even though they are safe for long-term use, regular wear and damage from the flat tire incident may affect their integrity. It’s also wise to rotate your tires and consider replacing your spare if it has been in use for a long time and shows significant wear compared to the other tires.
How do you maintain your spare tire?
Spare tire maintenance starts with checking the tire’s air pressure at regular intervals—ideally every month or before any long trip. A spare tire can lose pressure over time, and driving on an underinflated spare can lead to failure or difficulty mounting. Make sure the jack and lug wrench are also in good condition and stored properly with the spare, so everything is ready in case of an emergency.
In addition, inspect the spare tire for signs of wear, cracks, or aging. Even if it hasn’t been used, a spare can degrade over time, especially if stored in extreme conditions. Most spare tires have a recommended lifespan of around six years from the date of manufacture. If you’ve used the spare temporarily, have it professionally inspected and replaced with a full-sized tire as soon as possible to ensure your vehicle remains safe and operational.