The cars in my garage now are 2016 BMW M4, 2018 BMW X1, and 2007 BMW 550i. The two newer BMWs typically ran the BMW TPT variants, 0w20, 0w30, 5w30 - but some habits die hard and I prefer a PAO based oil even though the performance is likely the similar with the TPT. One thing I appreciate about the BMW TPT are the low noack, probably helpful for the GDI cars. The BMW dealership last filled my 16' M4 with BMW TPT 0w20 (TOO THIN IMO) and I quickly drained that out at 1200 miles for the UOA. I am running GC 0w40 currently, and will run a UOA to compare with BMW TPT.
Couple of thoughts;
Since North America isn't high sulfur gasoline anymore, I don't see the need to continuously run high SAPs oil esp with GDI cars. However, it is very hard for me to not use Castrol BC / GC 0w30 / 0w40. These oils are tried and true and never had any engine issues in 100k+ miles (albeit on port injection and not GDI), and are cheap and readily available everywhere. So I have history with castrol, but they recently lost LL01. I am not a fan of the LL01 5w40 Castrol as I believe the TPT oils are better. Not a big deal, just preference - so I am now attracted to Ravenol 5w30 / 0w40 LL01 , but these are 3x-4x the cost. If it is actually as good as GC / BC or better with lower NOACK, i'd be tempted to try it and send it in.
Comments / thoughts?
Last edited by JamesGames; 02/25/20 08:21 PM.