Summit Racing oil
We had this old clunker at Hotrod Drag Week for years and years, hardly laid a spanner on it. It liked to use a little oil and to be honest we just put in it whatever was cheap at the Gas station. That car did a lot of 11.5 passes and lots of Miles.
When it finally got shipped back here, I freshened up the engine and I was surprised how good the engine was on tear down.