Essential tyre safety for 15+ year old cars
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If you own an older vehicle, it's easy to become focused on the engine, brakes or suspension while overlooking the condition of the tyres. Tyres are the only part of your vehicle that touches the road, and they handle critical tasks such as steering, braking and transmitting power. For cars over 15 years old, tyre safety is especially important. Ageing vehicles often experience increased wear across suspension and braking systems, which puts more pressure on the tyres to perform. Ignoring tyre maintenance doesn't just reduce efficiency, it can create some serious safety hazards and even legal consequences.
How Do I Know if My Tyres Are Legal?
In the UK, every tyre must have at least 1.6mm of tread depth across the central three-quarters of its width and around its entire circumference. It's worth checking your spare tyre too, as you may need it unexpectedly. A simple digital tyre pressure gauge can make life easier as it will let you check both the tread depth and tyre pressure in one go. Each illegal tyre can lead to a fine of £2,500 and three points on your driving licence. With four tyres, that could add up to £10,000 and a driving ban, not to mention the risk to your life and others.
Why are Tyres So Important?
Your car's tyres are fundamental to safety because they determine how effectively your vehicle grips the road. Every time you turn the steering wheel, brake, or accelerate, tyres are the final link in the chain making those actions possible. Tread blocks in the tyre help to move water out from beneath the rubber when driving on wet roads. As tyres wear down to their tread wear indicators (the small raised sections between grooves), the soft rubber that provides grip thins, eventually leaving only the harder carcass. This dramatically reduces performance, particularly in wet conditions.
Worn tyres are more prone to aquaplaning, where a layer of water builds up between the road and the tyre. When this happens, your steering becomes light and unresponsive, braking is ineffective and you lose almost all control until grip is restored. Even in dry conditions, a bald tyre can't mould itself to the road surface properly. That means braking distances are longer, cornering is riskier, and emergency manoeuvres may result in skids or spins. For ageing vehicles, where other systems may already be less sharp, this adds further danger.
Choosing the Right Tyres
There's no shortage of tyre options, but selecting the right type can seem overwhelming. The main categories include:
Summer tyres - Designed for warm, dry conditions but usable year-round in mild climates.
Winter tyres - Equipped with more tread blocks to clear water and snow, offering much better grip in cold, wet, or icy conditions.
All-season tyres - A compromise between the two, providing reasonable performance throughout the year.
Many drivers of older cars opt for all-season tyres for convenience, while others buy spare sets of wheels to switch between summer and winter tyres as the weather changes. The most important thing is to choose tyres suitable for your driving conditions and to drive cautiously, leaving more space in poor weather. If you need to update your tyres or you want old car tyre advice, use our tyre finding service at Protyre Search by registration or garage to find the right tyre for your older car from our range that includes Bridgestone and Sumitomo.
How to Care for Your Tyres
The secret to tyre longevity is regular checks and maintenance. Start with a visual inspection once a week:
Look for cracks, bulges, or embedded objects.
Run your hand over the tread to feel for sharp debris.
Move the car forward to inspect the section of tyre normally in contact with the ground.
If you notice any issues, take your car to your local Protyre garage where we can also carry out servicing and MOTs alongside tyre checks.
For vehicles over 15 years old, paying attention to tyres is not just sensible but essential. Regular servicing keeps the engine running, but without safe tyres, you cannot rely on steering, braking or acceleration. Check your tyres weekly, maintain the correct pressures, and ensure tread depth meets the legal minimum. By taking a little time to care for your tyres, you can extend the life of your car and keep every journey safe.
Frequently Asked Questions
Even if the tread depth is legal, tyres more than six years old can harden and lose grip. On a 15+ year old car, it's wise to replace tyres every 5-6 years regardless of wear, especially if cracks or bulges appear.
Minor punctures can sometimes be repaired if they are within the tread area and not on the sidewall. However, for older tyres showing signs of ageing, replacement is the safer option.