It's easy to think of car tyres as steadfast and enduring, impervious to the passage of time. After all, they're designed to withstand incredible forces and harsh conditions. Yet, like most things crafted by human hands, tyres have a finite lifespan.

From the clothes we wear to the electronics we rely on, nearly every man-made object eventually succumbs to the effects of age and use. At Apollo Tyres, we understand that this concept might not be immediately obvious when it comes to something as sturdy as a car tyre. That's why we're addressing one of the most frequently asked questions we receive from our valued customers: Do car tyres have an expiry date? And, just as importantly, why does it matter to your safety and driving experience?

How tyres age?

Tyres are complex structures made of various rubber compounds, steel belts, and textile cords. While incredibly durable, these materials are susceptible to degradation over time due to environmental factors and usage patterns. This aging process isn't always visible, making it crucial to understand the underlying causes and how to mitigate their effects.

1. Oxidation: This is a chemical reaction where the rubber compounds in the tyre react with oxygen in the air. This causes the rubber to lose its elasticity, becoming harder, more brittle, and prone to cracking. To slow down oxidation, store tyres in a cool, dry place away from direct sunlight and sources of ozone (like electric motors). Using a tyre protectant that contains UV inhibitors can also help create a barrier against oxygen exposure.

2. UV Exposure: Ultraviolet radiation from the sun breaks down the chemical bonds in the rubber, leading to sidewall cracking and a general weakening of the tyre structure. This is why tyres left exposed to the sun for extended periods often show signs of premature aging. Parking your car in a garage or using tyre covers when parked outside for long durations can significantly reduce UV damage. Applying a UV-protective coating to the sidewalls can also offer an extra layer of defense.

3. Heat: High temperatures, be it from driving at high speeds, hot weather, or underinflation, accelerate the chemical reactions that degrade rubber. Excessive heat can also cause internal damage to the tyre's structure, making it more susceptible to blowouts. Avoid overloading your vehicle, as this generates extra heat. Maintain proper tyre inflation, as underinflated tyres run hotter. Storing tyres in a climate-controlled environment, especially during hot summer months, will help prevent heat-related degradation.

4. Improper Storage: Storing tyres incorrectly can dramatically accelerate aging. Factors like exposure to the elements (rain, snow, sunlight), stacking them improperly (which can cause deformation), or storing them near chemicals or solvents can all degrade the rubber. Ideal tyre storage involves a cool, dry, dark location, away from direct sunlight and sources of ozone. Tyres should be stored upright or laid flat, but never hung, as this can stress the sidewalls. Cleaning tyres before storage and using tyre bags can also protect them from environmental contaminants.

Also Read:- Most Common Types of Tyre Damage and Their Causes

Checking the Manufacturing Date on your tyres

Every tyre has a Department of Transportation (DOT) code stamped on its sidewall. The last four digits of the DOT code indicate the week and year of manufacture. For example, "1223" means the tyre was made in the 12th week of 2023.

Why Tyre Age Matters?

Aged tyres have compromised grip, handling, and braking ability, increasing the risk of accidents. While we also agree that every situation you face with aged tyres may not be life threatening, older tyres are more prone to sudden failures and can leave you stranded on the road during critical work hours or a fun trip.

So, even if they appear to have plenty of tread, old tyres can suffer from a spontaneous blowout, hampering your life and work flow.

Tyre expiry: When to Consider Replacing Tyres Due to Age?

Most tyre manufacturers and safety organizations recommend replacing tyres that are six years old or older, regardless of tread depth. Even if your tyres are less than six years old, their lifespan can be affected by environmental conditions and your driving habits. Therefore, it's essential to regularly inspect your tyres for signs of premature aging. Look for the following indicators that your tyres may need replacement, regardless of their age:

• Cracks in the sidewall or tread

• Bulges or deformities

• Dry rot (a brittle, cracked appearance)

What next?

To keep you driving safely and reliably, choosing quality replacement tyres is paramount. When it’s time for a new set, the first step is to confirm the correct tyre size for your car or SUV. You can find this information in your vehicle’s owner’s manual or on the sidewall of your existing tyres. Once you know the size, you can explore the many options available, both online and offline. As a premier tyre manufacturer, Apollo Tyres offers a wide range of products designed to meet the specific needs of all Indian cars, SUVs, and motorcycles. Our tyres are engineered for superior performance, durability, and safety, ensuring a smooth and confident driving experience.

To find the perfect Apollo Tyres for your vehicle, you can visit a nearby Apollo Tyres shop, where our expert staff can assist you in selecting the right tyres and provide professional fitting services. Alternatively, you can explore our entire product lineup online through the Apollo Tyres and Vredestein India websites, browsing at your convenience and finding the ideal match for your vehicle and driving style. Drive with confidence, drive with Apollo Tyres.