[78w72]

Originally Posted by Formulajones

Just for giggles related to the original post on diesel oil.

Amsoil actually makes a high zinc oil that is multipurpose and compatible with diesel and gas engines. This formulation is made for heavy duty use and states works well with flat tappet camshafts specifically with higher tension valve springs.

Anyway, for those that don't want to lube their gas engines with diesel oil, here's one oil advertised for use in both.

https://www.amsoil.com/p/premium-pro...-motor-oil-aro

most diesel oils are rated/designed for 4 stroke gasoline & diesel engines. amsoil is one but the other popular brands specifically state they are rated & Ok to use in gasoline engines, delo, rotella, valvoline etc etc, they all state they meet specs for both & are perfectly fine to use in either type of engine.

https://www.chevronlubricants.com/en...ae-15w-40.html

im sure theres some merit to that article but it seems to focus on the "higher rpm" use of gasoline engines or race situations... 99% of the time a gasoline street car is operating below ~2500-3000 rpm. diesel oils can be used in a gasoline engine with zero problems since most are rated for that purpose.