Originally Posted By: edyvw
Originally Posted By: KenO
Originally Posted By: IllinoisSparky
Originally Posted By: KenO
As far as 'favorite', that depends. In my shop, we run Motul 5W-40 in most of the regular streetcars. VERY robust oil that I know will go to the oil life monitor if people let it, but we prefer they don't. 8-10k max IMO. For track car duty or aftermarket turbo'd cars, it varies. We run anything from Castrol 0W-40 to M1 15W-50. Avoid 5W-30's, especially ones not LL-01 rated. I'd run Castrol 0W-30 before running even LM 5W-30.
Thanks Ken. Good info. Never considered Motul.
So, you think that 5W-30, even the OEM BMW version, is not a good choice?
I know you're getting some responses of 'any LL-01 oil will run identical', and while LL-01 is a pretty stringent spec, saying they'll all work the same is kinda inaccurate.
My experience with BMW's (castrol-based, know little about the current Turbo Power stuff) has been that it lead to noisy lifters when taken to the oil life monitor. I have no UOA data to back up any claims. It doesn't seem to hold up to abuse. Just like TWS 10W-60 shears like crazy, I just think there's much better on the market elsewhere. These engines are a bit hard on oil - the 30 wts just arne't up to the task if the car is anything more than a pure commuter. If you bought it for a commuter though and to never drive it hard - why did you buy a BMW? These cars need to be driven like sport bikes. Get them full warmed up, and run them to redline. Every day.
Which Castrols you are talking abut? 5W40? Yes. I had lifter issues with that oil on VW Passat 1.8T.
0W30/40? No way! It is ridiculously stout oil, and based on numerous UOA, more stable then any Motul.
No, I stated lifter noise with the Castrol-sourced BMW 5W-30.