How to check your tyre size
Check the sequence of numbers on the outer edge of your tyres.
The tyre pressure for your vehicle can be found on a sticker on your door sill (as shown below), inside the petrol cap, under the vehicle bonnet or in your vehicle handbook.
It is important that even ground contact is maintained between the road and the tyre. If the tyre is over or under inflated, the contact is altered. This will impact on the grip of the tyre thus impacting on the fuel efficiency of the vehicle. The pressure of your vehicles tyres must be altered if you are increasing the load. If this is not detailed in the owner’s manual, please contact your local AHG dealer for assistance. A heavy load is classed as 2-3 passengers plus luggage. Do not exceed the maximum load stated in the manufacturer guidelines.
When checking the air pressure of your tyres always ensure the tyres are cold. Any increase in temperature can change the tyre pressure reading by up to 4psi which means you may not be travelling with the correctly inflated tyres.
Under inflated tyres results in excessive wear to the sides of the tyre. Over inflated tyres causes wear in the middle of the tyre which will provide a poor ride quality and reduced grip. Both of these scenarios will have a detrimental effect on the fuel economy of your vehicle.