HOW TO USE SEA FOAM FOR ENGINE STORAGE AND STABILIZING FUEL
BENEFITS
DIRECTIONS
SUMMARY
Sea Foam Motor Treatment works to stabilize stored fuel up to 2 years. Adding Sea Foam to stored tanks helps fuel resist evaporation, preserves ignition vapors, adds protective lubricity, and prevents the formation of gum and varnish in fuel systems. Gum and varnish residues are the most common cause of poor engine function. Using Sea Foam in stored fuel will help your engines start easier and last longer.

what is a fuel stabilizer and what does it do?
RELATED QUESTIONS
How much sea Sea Foam do I add to a two gallon tank to store a motorcycle??
Hi Paul,
Thanks for the question! At a minimum, add 2 ounces per gallon of gas for storage. That will prevent fuel residues and varnish from forming while it’s in storage. You could also add the entire 16 oz can if you want to use a high cleaning concentration in addition to getting it ready for storage. The high concentration will do a good job cleaning up any gum and varnish when you run through that tank of gas next season. It’s a great way to get the most out of a can of Sea Foam.
Either way, make sure you run the motorcycle for 10-15 minutes to make sure the treated fuel makes it through the entire fuel system.
I just bought a new Husqvarna ST224 snowblower, with a 0.6 gal fuel tank. Thinking I should use about 0.6 oz of Sea Foam each time I fill?
Hi Rick,
Thanks for the question!
Yes, you’re on the right track! For your new Husqvarna snowblower, I’d recommend using about 1–2 oz of Sea Foam Motor Treatment per gallon of gasoline for regular preventative maintenance.
Here’s what I’d do: simply eyeball 1-2 oz of Sea Foam every time you fill up the snowblower tank. There’s no need to measure it exactly. You can safely add a lot of Sea Foam to gas. For example, while it’s unnecessary to add this much for regular preventative maintenance, it’s possible to use up to a 1:2 ratio of Sea Foam to gas for a strong cleaning dose. So don’t worry about using too much or being precise. Make it easy for yourself and just pour some in.
Sea Foam will help keep the carburetor and fuel system clean and prevent fuel gum and varnish from forming, which is especially important for seasonal equipment like snowblowers.
It will also help stabilize the fuel during storage. Just make sure to run the engine for a few minutes after adding treated fuel so it circulates throughout the fuel system.
Alternatively, if you keep gas in a gas can in your garage, just dump 1-2 oz of Sea Foam per gallon of gas into the gas can and you’re good to go.
Will Sea Foam remove ethanol?
Thanks for the question, Kay.
No, Sea Foam does not remove ethanol.
What Sea Foam does do is help stabilize fuel and prevent the formation of fuel gum and varnish as gasoline ages. It’ll also add protective lubricity and help protect parts from corrosion. Sea Foam is safe to use with ethanol-blended gasoline, including common E10 fuel.
If you’re storing an engine or equipment, add Sea Foam to fresh gasoline before storage and run the engine long enough to circulate the treated fuel throughout the fuel system.
I put Sea Foam in a 5 gal container of gas 2 years ago. Is the gas still good to use now?
Hello,
I am in northern Sweden and have an ’81 VW Golf 1.6 with Keihin Carburetor. It has not been driven for 10 years. It starts and drives, but idles a bit rough. It has 35 litres of new 98 octane fuel inside the tank. Is it possible that sea foam cleans the idle jets and stabilizes the fuel for the next three years?
Thanks
Jan
Hi Jan,
Thanks for the question! Here are two thoughts:
First, as far as stabilizing, Sea Foam will help stabilize the fuel and prevent it from degrading for up to two years.
Second, Sea Foam will help clean the idle jets as the treated fuel runs through them (you’d have to run it long enough that the treated fuel has time to work through the system and into the carburetor). I’d add two cans.

Jim D.TECH
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