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” F12-6 ...

Safety
As of this writing, the all-new Impreza hasn't been crash-tested. The WRX retains its Top Safety Pick designation from the Insurance Institute for Highway safety, having earned top scores of Good ...

Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions o ...