a. Tire Pressure

Having the proper tire pressure is a crucial issue to maintain to ensure safety, driving performance, tire life and fuel cost.

Check your tires when they are cold or your vehicle has been parked for at least three hours.

ou can find the correct air pressure for your tires by looking in your owner’s manual.

b. Tire Wear

The depth of tread on each of your tires is important for vehicle stability, especially on wet or icy roads. Irregular tire wear is a frustrating little gremlin that can steal your tires’ performance and tread life if you let it. You can prevent unexpected accidents by checking for tire wear regularly.

Check the depth of the tread by observing the Tread Wear Indicator on the bottom of major grooves in several places across. To ensure optimum safety and performance, tires should be replaced when groove depth remains less than 2mm.

c. Wheel Alignment

Wheel alignment is part of standard automobile maintenance that consists of adjusting the angles of the wheels so that they are set to the motor vehicles maker’s specification. The purpose of these adjustments is to reduce tire wear, and to ensure that vehicle travel is straight and true (without “pulling” to one side).

b. How to replace a tire

Rims of different diameters and tapers cannot be interchanged. The top right diagrams illustrate the difference between rims of two different tapers and diameters.

Pry off the wheel cover.

Loosen the lug nuts.

Jack up the vehicle about 6 inches off the ground.

Remove a tire and wheel from a vehicle.

After separating the tire and wheel, replace with a new tire.

Check tire balance.

Lower the vehicle to the ground fully and remove the jack. Finish tightening the nuts and replace the hubcap.

Install the newly fitted tire and wheel on a vehicle.