I checked but couldn't fined if this was posted already.
http://www.performanceoilnews.com/oils_against_oils.shtml
I think it's a good read.(burnout)
just one quick quote
"In the case of a pure performance or race engine where power is priority and oil changes can be frequent, the 0-30/40 oils such as the Mobil 0-40, Castrol R, or Royal Purple would be best suited. However,".....read on
http://www.performanceoilnews.com/oils_against_oils.shtml
I think it's a good read.(burnout)
just one quick quote
"In the case of a pure performance or race engine where power is priority and oil changes can be frequent, the 0-30/40 oils such as the Mobil 0-40, Castrol R, or Royal Purple would be best suited. However,".....read on