Oil Temperature 120Deg C

M5 TT · 08-20-2020, 04:53 AM

Anyone know why the F90 M5 runs at 120DegC??

80-100DegC has been the "normal" oil temperature for as long as I can remember, high enough to allow contaminants to burn off but low enough to not over stress the oil.

I know modern synthetic oils can happily run around 140DegC but with reduced lifespan. Given we run long life oil it seems 120 is a tad high??

somer · 08-20-2020, 10:15 AM

something something emissions, sacrificing long term reliability of the engine for 1 extra mpg if that.

08-20-2020, 04:53 AM	#1
M5 TT Captain 169 Rep 657 Posts Drives: F90 M5 Join Date: Sep 2008 Location: UK iTrader: (0)	Oil Temperature 120Deg C Anyone know why the F90 M5 runs at 120DegC?? 80-100DegC has been the "normal" oil temperature for as long as I can remember, high enough to allow contaminants to burn off but low enough to not over stress the oil. I know modern synthetic oils can happily run around 140DegC but with reduced lifespan. Given we run long life oil it seems 120 is a tad high?? __________________ 540i GTR-R35, F90 M5, X3MC, RS3, RS7, M5, S7, S3, RS3, RS6, GTR R35, 996 Turbo, M5, RS6 V10, Cayenne Turbo S
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08-20-2020, 10:15 AM	#2
somer Major 966 Rep 1,052 Posts Drives: F10 M5 CP Join Date: Oct 2013 Location: FL iTrader: (0)	something something emissions, sacrificing long term reliability of the engine for 1 extra mpg if that.
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