How Long Do Tires Last? When Should Tires Be Replaced?

A vehicle’s only point of contact with the road is its tires. For this reason, the condition of the tires directly affects driving safety and comfort. Tires, which are manufactured by combining rubber and various chemical materials, reach the end of their service life—whether through use or even while sitting in storage—after a certain period of time. So, how many years do tires last, at what mileage do they wear out, and how can you tell when it’s time to replace them? Here are all the details you’re curious about.

It is not possible to give a single, definitive figure for tire lifespan, as it varies depending on many factors. According to generally accepted averages, a tire’s service life ranges from 5 to 10 years. When evaluated in terms of kilometers, tires can typically be used for between 30,000 and 100,000 km; the common industry average is around 40,000–65,000 km.

Tire lifespan actually encompasses two distinct concepts:

Concept Explanation

Shelf life The maximum period (average 10 years) valid from the date of manufacture, regardless of whether the tire has been used

Service life The actual period of use the tire spends on the vehicle, which varies depending on driving style and conditions (average 5–8 years)

There is no specific legal limit on tire lifespan worldwide. Instead, legal regulations focus on the tread depth on the tire’s outer surface. Accordingly:

• The use of tires with a tread depth of 1.6 mm or less is prohibited by law.
• For safe driving, you should consider replacing summer tires when the tread depth approaches 3 mm and winter tires when it approaches 4 mm.
• The tread depth of a new tire is typically around 8–9 mm; this value decreases with use.

A practical way to check tread depth at home is the coin test: Insert a 1 TL coin for winter tires or a 50 kuruş coin for summer tires vertically into the tire’s groove. If the rim of the coin disappears into the groove, the tire is still usable; if the rim remains visible, it’s time to replace the tire.

How long a tire lasts depends on a combination of many factors, including frequency of use, driving style, weather conditions, vehicle type, load carried, and maintenance habits.

• Driving style: Sudden acceleration, hard braking, and sharp turns cause tires to wear out much faster. A balanced and controlled driving style significantly extends tire life.
• Road conditions: Rough, potholed, or uneven roads damage the tire’s tread and sidewall structure.
• Tire pressure: Both low and high tire pressure cause uneven wear. It is recommended to check tire pressure at least once a month when the tires are cold.
• Climate and weather conditions: Extreme heat causes rubber to harden prematurely, while extreme cold reduces flexibility and increases the risk of micro-cracks. Sunlight, ozone, and road salt also accelerate chemical aging.
• Vehicle type and load: SUVs, off-road vehicles, and commercial vehicles place greater stress on tires due to the weight they carry, which accelerates wear.
• Maintenance and rotation: Tires that are not regularly rotated, balanced, and pressure-checked show significantly faster wear over the same distance.
• Seasonal use: Using winter tires in the summer or summer tires in the winter strains the rubber’s structure and shortens the tire’s lifespan.
• Tire quality: The quality of the materials and workmanship used in production directly affects the tire’s durability.

Tire life also varies depending on the vehicle segment:

These figures are general averages; aggressive city driving can shorten tire life, while steady highway driving can extend it.

The main signs that it’s time to replace your tires are as follows:

• Tread depth falling below the legal limit (1.6 mm)
• Wear indicator protrusions on the tire surface reaching the same level as the tread surface
• Cracks, bulges, or blisters forming on the sidewall
• Holes or cuts in the tire tread exceeding 6 mm in diameter
• Abnormal vibration felt in the steering wheel
• Increased road noise while driving
• Longer braking distance
• Noticeable loss of traction on wet surfaces
• It is recommended that tires that are five years old be inspected by a professional service at least once a year, even if they appear to be in good condition.
• Excessive hardening of the rubber compound
• The tire has reached 10 years since its date of manufacture

Even if they are not used, tires age over time because the chemical structure of rubber degrades due to factors such as moisture, temperature fluctuations, and sunlight. For this reason, the maximum service life of a tire sitting on the shelf is generally considered to be 10 years from the date of manufacture. While this lifespan can be maintained when tires are stored under proper conditions (cool, dry, out of direct sunlight, and in an upright position), poor storage conditions can shorten the lifespan of even a brand-new, unused tire.

The tire’s production date is hidden in the last four digits of the DOT code located on the sidewall:

• First two digits: production week
• Last two digits: production year

For example, if “3623” is printed on the sidewall, this means the tire was produced in the 36th week of 2023.

Note: The warranty period generally begins from the date of purchase (invoice date), not the tire’s production date. Therefore, an unused tire with a slightly older production date will perform just as well as a newly manufactured tire, provided it has been stored properly.

Extending the life of your tires as much as possible is largely up to you. Key points to keep in mind:

• Proper tire pressure: Check the pressure at least once a month, according to the vehicle manufacturer’s recommendations.
• Regular rotation: Having your tires rotated every 5,000–10,000 km ensures even wear distribution.
• Wheel alignment and balancing: Having this service performed at least once a year prevents uneven wear and steering vibration.
• Defensive driving: Avoiding sudden acceleration, hard braking, and sharp turns helps slow down wear and tear.
• Pay attention to load limits: Overloading the vehicle beyond its carrying capacity puts excessive strain on the tire carcass.
• Use season-appropriate tires: Changing between summer and winter tires at the right time preserves both performance and tire life.
• Proper storage: Store unused tires in a cool, dry, and shaded area, away from chemicals.
• Caution during cleaning: When washing the vehicle, take care to ensure the tires do not come into contact with harsh chemicals or polishing agents.

How often should tires be replaced? On average, replacement is recommended every 5–6 years; however, this period may be shorter or longer depending on usage conditions. A tire that is 10 years old from the date of manufacture must be replaced, even if it appears to be in good condition.

How many kilometers do tires last? The general average is between 40,000 and 65,000 km; according to some sources, this figure can range from 30,000 to 100,000 km. Regardless of mileage, regularly monitoring tread depth is a more reliable method.

Do tires stored in a warehouse deteriorate? Yes. Even if unused, rubber undergoes structural changes over time. Even when stored under proper conditions, the maximum shelf life is 10 years.

Do the same rules apply to spare (spare tire) tires? Yes, spare tires are also subject to the production date. A spare tire that is 10 years old or shows signs of damage must be replaced, even if it has never been used.

Should a tire be replaced even if the tread depth is sufficient? In some cases, yes. Factors such as sidewall cracks, excessive hardening, or a production date that is more than 10 years old may require the tire to be replaced, even if the tread depth appears adequate.

When it comes to fleet management, the first thing that usually comes to mind is the vehicle purchase price; however, the real burden often begins after the purchase. Periodic maintenance, unplanned breakdowns, insurance renewals, and the vehicle’s depreciation over time can quietly inflate a business’s operating expenses. With DRD Fleet Leasing, these scattered cost items are consolidated into a single, predictable monthly payment; this allows your finance team to plan the budget much more clearly, while your working capital remains available for areas focused on growth.

For companies opting for long-term vehicle leasing, the advantage goes beyond mere cash flow relief. While classifying lease expenses as direct operating expenses reduces your tax burden, you also avoid having to carry a depreciable asset on your balance sheet. Time-consuming administrative tasks—such as vehicle maintenance, tire replacements, damage claims, and insurance processing—are handled by the leasing company; this allows your teams to focus on core business processes rather than vehicle management.

Whether you operate a small fleet or own a large vehicle fleet, it’s possible to find the right solution with packages tailored to your needs. To explore flexible leasing options suited to your industry and receive a customized quote, you can contact us via the Get a Quote page.