Am I correct in understanding that noack volatility numbers are a good indicator of base oil quality?
Terry has said that the additive pack in PP is outstanding, so I'll probably still go with it the end.
Why don't others like M1 and Castrol list this spec?
http://www.valvoline.com/products/Synpower.pdf
http://www.pennzoil.com/documents/Platinum%20Full%20Synthetic%20Motor%20Oil.pdf
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