Frequently Asked Questions
Q: When do I need new tyres?
A: It is important that you are familiar with tyre wear
and damage. Tyres support nearly every function of a cars motion,
including but not limited to road handling, braking and steering -
so it is vital that you are sure your tyres are in top notch
condition for the road. All tyres over 6 years old should be
checked professionally at a Bob Jane T-Marts. Even relatively new
tyres need regular checks for sidewall damage such as cuts or
bulges, and treads need checking for nails or tears. Contact your
local T-Mart on 13 2625 to have your tyres inspected.
Q: What pressure should my tyres be?
A: For everyday motoring, tyre pressure should never be
lower than the manufacturer's recommended pressure. This
information is usually mounted on the drivers' door edge or pillar,
or in the glove box. Tyre pressure should only be checked when the
tyres are cold. If you have to check the tyres when they're hot,
add at least 2psi (or 13.8kpa) to maintain optimal levels for
safety. A good quality tyre pressure gauge allows you check tyre
pressure before driving on the tyres; these are available at all
If you are unsure when checking your tyre pressure, drop in to
your local T-Mart. They can inflate your tyres to the correct
pressure and teach you how to get it right, every time. Call 13
2625 to be through connected to your nearest store.
Q: Why is my steering wheel shaking?
A: The most common cause of steering wheel shake is your
wheel balance, so it's important to have this checked as soon as
possible at your nearest T-Mart. Besides causing annoying steering
wheel vibrations, seat vibrations and increased fuel consumption,
improperly balanced wheels reduce road holding ability and also
increase wear of shock absorbers, struts, suspension and chassis
Only perfectly balanced wheels will give you the assurance that
you can keep control of your vehicle even when things get critical.
If you are concerned about your wheel balance, we'll have a look
for you. Just call 13 2625 to find your nearest T-Mart.
Q: I have a puncture - what do I do?
A: A puncture in your tyre can lead to rapid tyre
deflation, so it's important to have a punctured tyre inspected as
soon as possible to make sure you avoid permanent wheel damage. The
first thing to do when you have a punctured tyre is to change that
tyre for your spare.
It's critically important to organise for the punctured tyre to
be repaired as soon as possible. Depending on the area of the tyre
where the puncture occurs will determine if the tyre is repairable.
Generally tyres with punctures in the tread area are repairable,
and the technician at your local T-Mart will be more than happy to
Just call 13 2625 to be through connected to your nearest
Q: How does uneven tread occur?
A: As tyres are made up of many components, the causes
for tyre wear can be due to many different reasons. You can find a
list of the more common causes below:
- Cracking Between Tread can be caused by:
- High Torque
- Incorrect Air Pressure
- Lug Base Cracking can be caused by:
- High Torque
- Incorrect Application of tyre
- Shoulder Wear can be caused by:
- Bent Axle Beam
- Underinflated Tyre
- Lowering of vehicle with incorrect springs
- Rotation of tyre not properly timed
- Defective Wheel Alignment
- Sidewall Damage can be caused by:
- A number of factors. It's very hard to identify, however
generally it's the result of impact damage or a faulty tyre. In
most cases if it's not clearly impact damage, the tyre will need to
be cut open to determine the cause.
- Tyre Abrasion (wrinkles or discolouration) can be caused by:
- Diagonal Wear can be caused by:
- Defective Suspension or rotating parts
- Rotation of tyre not properly times
- Defective Wheel Alignment
- Centre Wear can be caused by:
- Incorrect tyre fitment for wheel
- Tyre has been inflated for loaded vehicle on a vehicle with no
- Flat Spot can be caused by:
- Faulty brake system
- Rapid starting or sudden braking when driving
- New brakes (drum brakes only)
- Wheel weight imbalanced
If you have come across any of these symptoms of tyre wear, our
staff are always more than willing to assist you in locating the
cause of your problem and rectifying the matter. Simply call 13
2625 to find your local T-Mart.
Q. Do I need a new battery?
A. On average a car battery will last between 3 to 4
years. Once a battery has started to fail it rarely responds to
recharging, usually due to the positive plate of the battery self
destructing, resulting in no plate left to hold a charge that
starts your vehicle.
If you've been having difficulties with your battery we can test
your battery free of charge, just call 13 2625 to find your local