FunnyVictor86
Well-Known Member
I'm currently using Castrol Syntec, but why not royal purple? my cousin's using it on his E39 BMW and it's amazing + i heard ppl talk about it on the track that it's one of the best high performance motor oils out there.
IMO by personal experience, Royal Purple is overrated sludge in a bottle. I used it once, luckily I didn't pay for it lol. I only put 3k on it and when i changed it had already sludged up. I recomment you stick to Castrol oil.