Summit Racing oil

Penn Grade or Gibbs.

can get Penn grade from Oregon Cam for about 100 bucks for 12 quarts.

Penn is all my brother uses now in the vintage Ford Cosworth Formula 1 and F2 motors he builds which are all OHC flat tappet motors with a red line of a 10,000 RPM’s. I won’t say what a rebuild cost is for one of these but it is more than the value of most of our A-bodies…