Then this
oil you might want to consider.
http://www.bradpennracing.com
We run this stuff in our street and race cars. Refined from PA crude and specifically for performance engines. I ran Castrol; it broke down fast. I ran Kendell; it broke down. This is the original "green"
oil and it does not break down and formulated with a high
zinc content. It's good stuff but there aren't a lot of distributors. $48. a case.
Bernie