See also:

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”. ...

All new gearbox and Boxer engine
UK versions of the Subaru Impreza will be powered by an all new 4-cylinder 1.6 litre Boxer petrol engine and will be available with either a new five-speed manual transmission or Subaru's Lineartr ...

Checking the fluid level
The automatic transmission fluid expands largely as its temperature rises; the fluid level differs according to fluid temperature. Therefore, there are two different scales for checking the level ...