Non-turbo models
The engine is designed to operate using unleaded gasoline with an octane rating of 87 AKI (90 RON) or higher.
See also:
Turbocharged Power
The 2.5-liter four-cylinder engine from last year's WRX really is a hoot to
drive, and it's just as strong in the 2009 Impreza 2.5GT. Whether you're
cruising around the city or driving on the high ...
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 pers ...
When the brakes get wet
When driving in rain or after washing the vehicle, the brakes may get wet. As a result, brake stopping distance will be longer. To dry the brakes, drive the vehicle at a safe speed while lightly depre ...