Subaru Impreza 2.2L MT - Manual (Page 263)

IMPREZA U.S.A. (E)
10
Maintenance and service
10-7
– CONTINUED –
Engine, transmission, and differential gear oil
leaks
OM-H0187
Engine Transmission Differential
Inspect the following for oil leaks:
Oil pan mating area
Oil filter mating area
Mating area between the engine and transmission
Around the rear differential case cover (AWD vehicles only)
Each drain plug and filler plug
If you find any leaks, contact with your SUBARU dealer.