Subaru 2002 Legacy Owner's Manual page 408

HBB065BB HBB066BB
Others
Filler plug
Oil level
Filler hole
Drain hole
Drain plug
HB0077 HB0078
Remove the plug from the filler hole and check the oil level. The oil
level should be kept even with the bottom of the filler hole. If the oil
level is below the bottom edge of the hole, add oil through the filler
hole to raise the level.
B Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use
different brands together.
Oil grade: API classification GL-5
11-28