Joe Gibbs oil and shell rotella if you don't want to spend the money has hi zinc.. Lucas has a classic car oil for cam lobes and it doesn't hurt to use cam assembly paste for the first startup on the cam and lifter surfaces... Break in oil for the first 5 hours then the hi zink after that... It's the first few moments that is really important when everything seats together... Is my 4t routine and a little bit in the fuel 100:1 will stabilize it and lube the upper cylinder... That little bit of oil in the fuel helps with corrosion when you winterize...