Checking the oil level
Non-turbo models
1) Yellow handle
Turbo models
1) Yellow handle
Check the oil level monthly.
1. Park the vehicle on a level surface and stop the engine.
2. Pull out the level gauge, wipe it clean, and insert it again.
1) Upper level
2) Lower level
3. Pull out the level gauge again and check the oil level on it. If it is below the lower level, add oil through the level gauge hole to bring the level up to the upper level.
CAUTION
Be careful not to spill manual transmission oil when adding it. If oil touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If oil gets on the exhaust pipe, be sure to wipe it off.
See also:
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.
...
Turbo models
The engine is designed to operate using
premium unleaded gasoline with an
octane rating of 91 AKI (95 RON) or
higher. If premium unleaded gasoline is
not available, regular unleaded gasoline
...
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 ...