Quote:
Originally Posted by dparm
M 0w40 is widely used as a streetable race oil. Even Mobil says that's what it was designed for. Factory fill on the AMG models, Viper, GT-R, etc. Also used as a spec-oil by some spec-racing series. Aston Martin uses it straight from the bottle in their LeMans cars.
300 F on that oil on the track is just fine.
Being considerably thinner than TWS (HTHS 3.8 versus 5.2) means it will actually run cooler. The higher VI (185 vs 173) also means a lower change of viscosity with temperature, which is a good thing. We already know that the bearings on these cars have issues squeezing oil through due to some crazy tolerances, so why run something even thicker than necessary?
As I've repeatedly posted: "as thin as possible but as thick as necessary".
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100% agreed...I know everything about the Mobil 0W40 SuperSyn !
One of my previous cars was a AC Schnitzer BMW 325 i straight 6 and every oil change was done on this car with Mobil 0W40 !(with the gold closure-cap)
This car had 325,000 km on the clock...than i sell it,and still runs strong even today !
But this was not a S65 engine ...
