Spent the weekend at NHIS SCCA drivers school. I put around 250 miles on fresh Red Line 40wt. First time car has seen anything other than BMW motor oil. Engine was noisy. I was told by another BMW racer that the viscosity of Red Line was not suited for engines w/ Vanos. He recommended Amsoil. Anyone one out there tips w/ any info on this would be appreciated. Car is a 94 325is.

thanks,

domenic crugnale