Sea Foam Pro size in diesel fuel [SOLVED] Asked by Remy P. In Alabama Can I use Sea Foam Pro size in the fuel of a diesel engine?
Hey Remy – yes! You can use the 20 oz Sea Foam Pro size (part SF20) in any gas or diesel fuel and any engine. It’s the same product as the standard Sea Foam Motor Treatment (SF16), just in a different size.
Note: Marine PRO is for gas engines only.