fuel treatment for storage

IMHO, Sta-bil is preventative, SeaFoam is for after you forget to use Stab-bil.

Hi Mex,

I'll also be running premium (non ethanol) gas for the next while (cost is 63 cents more per US gallon than for regular). The generator did not like Sta-Bil last winter. The V-10 in the E-450 was fine with it.

I found starting much easier once I treated the generator with seafoam and the effect was more or less instantaneous.

Our climate is cold and dry.

In the V-10 mileage was significantly improved.

Here is my experience with Seafoam in a V-8 gas motor. Got rig used and probably never had any fuel treatment.

Followed directions to "clean injectors" and within 100 miles one injector fouled out. Cleaned that injector and then shortly later another one got plugged up. Took all injectors out and had them cleaned by an injector place. The place really loves Seafoam. They get a lot of business off it. It does to good of job cleaning.

I remember the cleaning place saying that Seafoam is so strong that it breaks stuff loose that might be better off left alone. The stuff that is gummed up in a corner of your tank. But seafoam breaks that stuff up and it has to go somewhere, so off to your fuel system it goes.


Some made it passed my fuel filter (obviously)and plugged up injectors.

Was recommended that I change fuel filter every 3,500 miles for 3 times then back to normal schedule. Haven't had any problems since.

At the time I was angry with seafoam. But since then I feel better and have "cleaned" out the insides. And by default learned all about coil over plugs, injector "bails" or little cages that injectors have. Matter of fact it only takes me about 20 min to change an injector now. And I also (now) carry a spare injector. Of course that probably means I'll never need.

Seafoam did make my chain saw and lawn mower run better. I even ran some in my coleman lantern. And Yes lantern was brighter. I shared that on here and somebody that collects lanterns PM me and said never do that again. The stuff under the gas cap on lanterns can fall apart with seafoam.

So IMO as a fuel treatment for storage NO. AS a good cleaner YES

I use seafoam in everything including chain saw, lawn mowers, and Harley I don't drain the gas in the winter and have had no problem starting in the spring. Seafoam stopped the hunting on my Onan generator took about four hours of running to clean the carb after that no problems. The cost is minimal given the results it goes on sale at walmart and bimart on a regular basis, I stock up then

TEMPERATURE

RELATIVE HUMIDITY

These two factors affect the necessity and resultant percentage of concentration of a fuel stabilizer. Do either of the two products mention this on labeling?

A phone call or email to the vendor might reap dividend$. Cold and dry is light-years easier on fuel than hot and humid.

Hi 2old,

I'll use it in my generator and class C rv tank.

I have a 55 US gallon tank so two bottles will be adequate.

Just fuel alone, or in something like a generator?

I use Sta-bil Marine in our Southwind. It has a 100 gallon gas tank.
The Sta-bil does a good job.

I use SeaFoam in my small engines.

It takes more SeaFoam to treat 100 gallons of gas than it does Sta-bil.

That said, SeaFoam does a good job. I just think it's too expensive when treating 100 gallons.

I believe they recommend 1 oz. of SeaFoam to one gallon of gas for stabilizing while storing fuel.