What's better for storage - Sta-Bil or seafoam?
- Thread starter grampi
- Start date
Exactly. The stuff dissected around here that creates a tidal wave based on one-off occurrences and info from other forums decades ago, literally, amazes me. It's NOT difficult to do quick 'net searches and save all kinds of stress.^^^ 20 years ago ... no worries today.
Sta Bil Marine 360 or Seafoam will work well. I speak from my experience as never had a problem when using either.
Neither. Drain all the gas you can out of the tank and pull the fuel drain on the carb to drain all the gas out.
I will never believe this...
The Marine 360 is really not necessary...regular (red) Sta-Bil works just fine...
It’s not.
4WD
$50 site donor 2025
What do you add to Stabil to make it last ? 
Probably a reference to the (still inappropriate) Seafoam Marine product.
JHZR2
Staff member
That’s what I use. I never had issues with stabil red, but I prefer the marine with a bit of tcw-3, including for low use gasoline cars.
Then why do they state that it can stabilize fuel for two years
https://seafoamworks.com/how-to-store-a-motorcycle/
Direct from Seafoam's web page:
*stabilize tank fuel*
Add at least 1 oz of Sea Foam per gallon in the tank. For best results, run the tank down until there’s about a gallon of fuel left, and add an entire 16 oz can of Sea Foam Motor Treatment to the tank.
Run the engine long enough for the treatment to work through the entire fuel system (about 5-10 minutes of idling).
From there, you can either store your bike with the fuel tank partially empty or full. Sea Foam will stabilize your fuel for up to two years.
Pretty much any petroleum product that’s heavier than gasoline will “stabilize” it, which is basically a marketing term for reducing evaporation.
I had bad luck with Stabil. Still had gummed up carbs. Switched to Star Iron product. Seemed to work well. Now I use the canned fuel. With OPE run the gas tank dry and put in canned fuel and run it through the system and shut down. Starts right up in the spring.
This. Used canned, synthetic fuel.
I've never had personal success with stabilizers and I've never seen a test that shows the results we all expect. I've used a handful of brands in the past decades but I think it's mostly placebo. You might feel just a good running Slick50.
Yes, I noticed the Marine 360 is much more concentrated compared to their standard product and why the higher price difference for the same size bottle. I assume that is because many marine fuel tanks are much larger than automobiles.(oops, old thread)
True but cost about the same, The marine version is much more concentrated
Make non ethanol, 92 e10, add water and food colouring to see the iowa swill subsidy, let settle because its heavier, drain and you should have 88 clear fuel
I had a client who was using Stabil Marine in his boat, OPE and new Deere riding mower. I had to change the Deere fuel filter five times, and run the tank dry before the Deere would run reliably again (on fresh gas). This is when I started to realize that "fuel stabilizer" was part of the problem.
At present I cannot recommend any brand of "fuel stabilizer". Use synthetic fuel for storage purposes.
Sta-Bil Marine 360 has additional corrosion inhibitors that the Red does not.
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