[Tinker]

Lot of different oil options. Royal purple has some stuff with high zinc ratings. Or using a semi diesel straight 30w. Thick though.


Pertaining to the comment "I think this falls in the same category as guys trying to raise the octane rating of gasoline using off the self chemical stews."


Not sure why anyone would need to boost octane on a standard or slightly modified flathead. Octane in the 30s,40,50 was around 70 octane at best. Octane in the 20s was around 40 and gas was dirty. There is a reason I can get a hit and miss engine to a running heat and switch it to fire on kerosene (15 octane).