Using Sea Foam in diesel [SOLVED] Asked by Thomas B. In Alabama I use Sea Foam Motor Treatment all the time. Can this product be used in diesel as well?
Sea Foam Motor Treatment is safe and effective in any gas or diesel engine, and any gasoline or diesel fuel.
You can definitely use it in diesel fuel (and crankcase oil)!
Be sure to check out the video on cleaning diesel fuel injectors:
https://www.youtube.com/watch?v=544E_X2oUgM