haha if we were to discuss about which is the "best", the discussion will NEVER end hahahahaOn my 04 I used Castrol Syntech and never had an issue with it. I felt that was a pretty good oil, but there are some better oils out there. Anyone have an opinion on the best synthetic oil?
To long? I usually go 8-10k on full synthetic, and thats with auto-xing.I will do the first one at 1500 miles and the second one around 5000 miles. Both on Dino oil, then switch to Synthetic and change every 5k. I know some will say that is to long, but it is what I did with my last WRX and it went 100k without as a burp from the engine.