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Tyres & Brake FAQ in Adelaide


Q: How do I tell the age of a tyre?

A: All tyres are produced with a serial tyre identification number that shows the manufacture date of a tyre. The last three digits (for tyres made before 2000) or four digits (for post-2000 tyres) of the serial number indicate the week and year that the tyre was made. Also, a tyre made in the 1990s can be distinguished from a tyre made in the 1980s due to a triangular indentation after the last number.

Q: How old is 'too old' for a tyre?

A: This has been a subject of much debate within the tyre industry. No tyre expert can tell exactly how long a tyre will last. However, on the results of experience, many tyre companies warrant their tyres against manufacturing and material defects for five years from the date of manufacture. Based on their understanding, a number of vehicle manufacturers are now advising against the use of tyres that are more than six years old due to the effects of ageing.

Q: Is your tyre pressure OK?

A: Look at the vehicle manual in your car and check for the pressure recommended by the manufacturer. Only check your tyre pressure when cold — this is when you haven’t been driving for an extended period of time.

Q: Do you have enough grip on your tyres?

A: Your tyres are required by law to have a certain depth of tread. It’s neither safe nor legal for your tyres to be under this limit.

Q: How's your spare?

A: The spare tyre is easily buried and often forgotten in your boot, but you should make sure your spare tyre is in good condition. Remember to check its pressure on a regular basis. If you do get a puncture and have to change tyres at any stage, make sure you go and get it repaired straight away.

Q: Are the tyres worn evenly?

A: Make sure that the tyres on both sides of your car have the same level of wear. If not. It could mean that one side is over-inflated or that you might have an issue with your wheel alignment.

Q: How can I get the most out of my fuel?

A: These are some factors that can assist in getting the best results at the pump. Ensure correct tyre pressure, wheel alignment and wheel balance; and select the most suitable tyre pattern, construction and compound for your vehicle and driving requirements. Other factors include driving style, speed, load, ambient temperature, road condition and vehicle condition.

Q: What causes tyre failures on motorhomes and caravans?

A: Tyre failures can be caused by under-inflated or overloaded tyres. Any tyre failure has serious consequences, placing vehicle occupants and road users in potential danger. Overloaded tyres generate excessive heat due to increased flexing. Over time, excessive heat can damage the bonding between the tyre components. This creates the potential for tyre disintegration in service.

Q: When should tyres be rotated?

A: Your owner’s manual will tell you how often to rotate your tyres, but, as a rule of thumb, it should be done every 10,000 km.

Q: Why should you rotate your tyres?

A: Tyre rotation simply means moving tyres around so that they ‘trade places’ on your vehicle in a systematic way to achieve more uniform wear for all tyres on your vehicle. Rotation is important because each tyre on a vehicle carries a different amount of weight, especially your rear tyres if you are carrying loads, making them wear at different rates. By rotating them, you basically even out those differences. Remember, tyre rotation cannot correct wear problems due to worn mechanical parts or incorrect inflation pressures.

Whilst no one likes their tyres to wear out, it is actually an advantage when all of the tyres on a vehicle wear at the same rate throughout their life. Since tyre rotation will help all of the vehicle's tyres wear at the same rate, it will keep the tyres performing equally on all four corners. When your tyres wear out together, you can get a new set of tyres without being forced to buy pairs. If you replace tyres in sets, you will maintain the original handling balance.

Q: What are some warning signs for bad tyres?

A: Regardless of their age, tyres should be replaced if they show significant crazing or cracking in the tread grooves or sidewall and or bulging of the tread face or sidewall. All tyres, especially unused spare tyres, should be inspected periodically to determine their suitability for services. If there is any question about your tyres suitability, please give us a call today.

Q: What are UTQG ratings?

A: UTQG (Uniform Tyre Quality Grading) is an American law accepted by all manufacturers in all countries that allow buyers to directly compare key tyre attributes, treadwear, traction and temperature.

Treadwear ratings are an indication of a tyre’s wear rate. The higher the treadwear number, the longer it will take for the tread to wear down. Traction ratings are an indication of a tyre's ability to stop in the wet. A higher grade allows your vehicle to stop in a shorter distance than a tyre with a lower grade.

Q: How do UTQG ratings relate to Australian drivers?

A: Although there is no formally recognised testing for tyres being sold in Australia, the system is as relevant in Australia as in any country. It gives Australian drivers an easy, self-assessing way to factually compare tyres.

Q: Where do I find UTQG ratings?

A: Look to the sidewall of your tyre to find the treadwear, traction and temperature ratings.

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