Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power.
The brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to depress the pedal much harder than normal and the braking distance will increase.
See also:
Fuel octane rating
This octane rating is the average of the Research Octane and Motor Octane numbers
and is commonly referred to as the Anti Knock Index (AKI). Using a gasoline with
a lower octane rating can cause p ...
Waxing and polishing
Always wash and dry the vehicle before waxing and polishing.
Use a good quality polish and wax and apply them according to the manufacturer’s
instructions. Wax or polish when the painted surface is ...
Safety
The Insurance Institute for Highway Safety crash-tested the 2008 Impreza, and
the car earned a Good overall rating — the highest possible score — in
frontal-offset, side-impact and rear crash test ...