They had to be paid big bucks by someone to do that for research or something. There is no way I would even consider Mobil-1 if I was racing. But I believe they have different oil systems too, they probably have dry sump which should eliminate starvation so the antiwear properties are not as important as on yours and my car.quote:
Originally posted by Al:
I'm not here to defend Mobil, but I have an SAE report (951026) in my hand that indicates that the '93 Indy Winner used the Mobil 1 15W-50 API/SG/CD with .11% Phos Level. The post race teardown indicated that there was very little wear on the engine and that it could have gone another 500 miles.
I know of several people who have spun bearings using Mobil-1 oil while track racing.
This is where an oil like Red Line or possibly Schaeffer's really comes into play.
If I was racing you couldn't pay me enough to run Mobil-1. Who cares about the cost of the motor, if you spin a bearing, your race is over.
And for a professional racer to use M1, there has to big money involved.
I cannot fathom any other reason why they would pick M1 over Red Line race oils.