It says the WRX is to use synthetic oil (that meets their specs or better), but not just Subaru Synthetic....Originally Posted by rage-wrx
Changing Oil.The manual states that oil changes are at 7500 miles & all turbo models are to use Subaru synthetic oil.
And try convincing your local dealer you only need it every 7500 miles. Many will argue with you and tell you that doesn't apply to turbo models even when you show them the exact paperwork.
It doesn't really matter, though. Subaru is the only ones you need to convince for a warranty claim, not your dealer.