Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table.

See also:
Recommended clutch fluid
CAUTION
Never use different brands of clutch fluid together. Also, avoid mixing DOT 3
and DOT 4 brake fluids even if they are the same brand. ...
Approved engine oil
Always use the SUBARU approved engine oil. For further details, please
contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative engine oil
described on the next ...
New Chassis Tuning for 2011
The Subaru Impreza WRX STI was already a highly optimized performance
machine. Specific chassis tuning. Aluminum front lower L-arms reduce unsprung
vehicle weight. Major chassis tuning changes inc ...
