Thanks for the question. No, Sea Foam does not have ethanol it it. It’s made with a blend of petroleum cleaning and lubricating ingredients. You can use it in any gas or diesel engine. Hope that helps and let me know if there’s anything else!

Thanks for the question, Shahid! Here’s the difference:

Sea Foam Motor Treatment:

• How to use it: pour it in your fuel tank or oil crankcase
• What you can use it in: any gas or diesel engine. It’s safe and effective in any kind of gas or diesel fuel, and any kind of motor oil.
• What it does: cleans fuel and oil residues to help your engine run cleaner, run better, and last longer

Sea Foam Spray:

• How to use it: apply it through a gas throttle body or carburetor
• What you can use it in: gas engines only. Particularly useful in gasoline direct injection engines. NOT for use in diesel.
• What it does: Sea Foam Spray is an aerosol version of Sea Foam Motor Treatment. Sea Foam Spray works through a gas engine’s upper air intake to dissolve harmful deposits and residue buildup from intake runners, intake valves, and combustion chamber areas. It’s especially helpful for cleaning intake valves in gasoline direct injection engines (GDI).

In short, both products will clean critical engine areas to help your engine run better and last longer.

Hey Stephen,

Good question! Sea Foam Motor Treatment will keep fuel fresh for up to two years. More specifically, it will preserve ignition vapors and prevent fuel gum and varnish from forming.

Note: Sea Foam won’t “restore” old fuel. Add it to fresh fuel before storage.

Good question. Sea Foam Motor Treatment will stabilize stored fuel up to 2 years. Sea Foam will help preserve ignition vapors and prevent fuel from degrading.

Here are a few things to keep in mind:

• It’s best to add Sea Foam to fresh fuel (rather than fuel that’s already been in a gas can for a while).
• Sea Foam can’t “restore” old fuel.
• Add at least 1 oz of Sea Foam per gallon of fuel that you’re storing.

Hope that helps and let me know if you have any other questions!

Thanks for the question, Dave! For routine/preventative maintenance in a John Deere lawn mower, add 1 to 2 ounces of Sea Foam Motor Treatment per gallon of fuel. This will help clean the fuel system and prevent fuel from breaking down.

For occasional cleaning (once a year), use a higher concentration by adding a half can (4 ounces) to a small amount of fuel, like a half-gallon. Run the engine until the treated fuel is used up. This helps clean stubborn fuel residues and varnish.

If you have more questions, let me know! Happy to help.

Does sea foam help in starting you chain saw

Hi Mark,

If your chainsaw won’t start, I’d check out this page on how to fix a gummed-up carburetor. That’s very often the problem when a small engine like a chainsaw won’t start. Let me know how it goes!

https://seafoamworks.com/wp-content/uploads/2024/04/HOW2_Gummed-Up-Carburetor.pdf