[billwot]

Originally Posted by pushrod

Use factory Subaru filters, and a good synthetic 0w20 oil. Follow the intervals in the manual. Mine says: @8000km, @16000, @32000, and +16 from then on out.

Make sure you get the quantity right. The dipstick doesn't lie. If you overfill it, you're gonna have to drain it.

Also, there is a non-reusable crush washer on the drain plug. Buy a bunch from the dealer.

Don't use other grades.