Break in oil

Rat Bastid said
LOL I don’t use that either. Too damned dirty. But...a diesel oil isn’t built for gasoline. You wouldn’t use gasoline oil in a diesel oil would you? There is no reason to use a diesel oil in a gas engine and gas oil in a diesel. Two completely different formulations for two completely different engines.

It’s not 1950 any more. Oils are built for a purpose. Running a cheap oil is just dumb.

This is basically a stock engine he can run a quality oil and a supplement for flat tappet and be fine and if thats Rotella
Delvac whatever the engine will live just fine if serviced properly.