castrol edge 0w30 I also think is good, but very low flashpoint.. Think maybe not good with this type of advanced turbo-systems that 35D and above has.. Think i read something about that bmw had problems with boiling oil-lines on these machines.
X-clean 5w40 i have been using 20L of , working good but engine start leak from valve cover gasket.. Just pulled the intake and injectors and change the gasket.. maybe too good at "cleaning" xD .. no but, its a good oil and maybe i use it again in future. I think X-cess with the higher saps / TBN is better for a engine withot dpf/egr ? .
Mobil uses ASTM D92 method to determine flash point, Castrol uses ASTM D93. Castrol Edge 0W30 C3 is premier product by Castrol, and only one with 10W60 Supercar that is majority PAO. There is no way turbo lines in 35d are going to cook that oil. Take into consideration that oil temperature in M57 with twin turbos is around 90-96c. I have never seen my X5 35d running hotter than 116c, and that is going full throttle uphill above Denver at 8% grade, at around 2.2km altitude while doing DPF regeneration. Once DPF regeneration is over, even going uphill full throttle temperature drops to around 100-105c.
Idk that Motul would be particularly problematic for gaskets. BMW 2018 update of LL 01 and 04 specifically addresses this issue and it is now probably toughest approval to get.
Ok understand! I Think the oil getting hotter around the turbos than Whats shown by the temp sensor that is placed after oil cooler? I dont know but anyway I also think its a good oil, what is 200c ATSM93 in ATSM92?
What do u mean BMW changed in the 2018 update of LL approvals? Cuz motul 8100 x clean and xcess seems to lost their approvals and Only adress "Bmw LL01 and LL04 before 2019"
Motul Gen2 has LL01 (X-Cess) and LL04 (X-Clean). All vehicle manufacturers update their approvals. LL01 from 2018 is far more stringent than LL01 from 2001 when it was introduced. LL04 initially was only covering diesel vehicles. Once Europe moved to ULSG, LL04 could be used in gas engines. However, BMW had to add some tests to LL04 to address specific issues related to gas engines. So, these approvals are evolutionary, not static.
Temperature around turbo is extremely high. However, oil is not static, it circulates and cools off. Also, talking about temperature, do not forget that thicker oil means higher temperature. Also, you are in Sweden, you would be better of with 0W30, not bcs. of start as any 5W will do OK there too, but W30 will run much thinner at 60c, or 70c. In really cold days in Sweden, you might not achieve operating temperature at all during commute. In that environment, W30 would do much better.