See also:

Battery drainage prevention function
If a door or the rear gate (Outback) is not completely closed, the interior lights will remain illuminated as a result. However, several lights are automatically turned off by the battery drainage ...

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
Each oil manufacturer has its own base oils and additives. Never use different brands together. For details, refer to “Manual transmission, front differential and rear differential gear oil” F12-6 ...