See also:

Cargo area cover (if equipped)
The cargo area cover is provided for covering the cargo area and to protect its contents from direct sunlight. This cover is detachable to make room for additional cargo. ...

Limited slip differential (LSD) (STI)
The LSD provides optimum distribution of power according to the difference in revolutions between the right and left wheels that may be caused by certain driving conditions, thereby improving driving ...

Recommended grade and viscosity
CAUTION Use only engine oil with the recommended grade and viscosity. NOTE Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel economy. However, in ...