Rotella T Triple Protection. You should be able to get gallons at WM for cheap. You can use it in the engine too if that's the correct weight.
I'd swap out the factory fill if it was my equipment. Actually, I'd probably do it annually with the motor oil if it was easy enough to do both, but that's just my OCD.
How often does the manual say to do it?
Edited by Bandito440 (04/28/12 09:23 AM)
'13 Forester 2.5X 5MT - NAPA 0w-20 & Wix 57830
'97 R1100GS - RL 20w-50, KN-163, Shockproof Heavy