Hi , put a new bulb in my nsf fog light today.... but while i was doing it i noticed a oil filter towards top of wing at front!!!!!  can some one tell me what it is for...  can find nothing on net or in book... cars a 05 3.0 Ru ....est   ??  how the hell do you reach it to change it... thanks in advance.

Can you get a pic ? Seems odd and now am intrigued [emoji3]

Could have an oil cooler fitted and braided lines putting the filter in a different position. Had one on the old impreza.

Oil cooler is the blue radiator type unit. Oil filter is up where the air con would be.

Transmission fluid filter. Not usually replaced (lifetime fitment generally) but if you do, best use OEM filter. Remove battery to make room.