Is it okay to add a whole bottle of Sea Foam to the gas tank? [SOLVED]

Hi Wayne,

No worries – completely fine! Sea Foam is made with 100% petroleum ingredients that can’t harm your engine. In fact, the higher the concentration of Sea Foam to fuel, the better and faster it cleans. Adding a full can to a 1/4 or 1/8 a tank and driving it for a while is a great way to clean your engine. Go ahead and run it as usual.

[EDIT:] It appears that you could be referring to adding a whole can of Sea Foam to the crankcase. If so, drain and replace the oil if you have heightened concern. If your oil is new, can drain 3 quarts/add 3 new quarts.

Wayne, I have been using SeaFoam for years in my 6.0 Powerstroke to keep the engine clean. However, my turbo is now sticking. If I increase the ratio of SF to diesel will it remove the soot from the turbo? If so, how high a concentration should I use? I was thinking 50/50. Thanks.

Hi David. Sea Foam in fuel has no relationship with how a turbo works so won’t help. Are you sure your issue is not oil related? Can try a can of Sea Foam in your oil to help with crankcase cleaning.

I’m thinking maybe Wayne meant into the oil crankcase. Or else he’d probably use the term gas tank and not engine. Either way, what about dumping a whole bottle into the crankcase. What then?

Hi Josh. Thanks for saying something. Seems we agree that the original post likely meant adding to oil, not the gas tank. See EDIT response.