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Sea Foam vs STAY-BIL?

ezgoin
Explorer
Explorer
I've never used Sea Foam, only STAY-BIL for a fuel additive during periods of low usage of our gas MH. I'd appreciate your thoughts on these products. Is Sea Foam more of a gas treatment vs use as a stabilizer?

Thanks to all for your ideas!
Bill
The older I get....the better I was.

Bill & Terry
And our canine kids, Skippy & Peanut
2014 Fleetwood Bounder Classic 30T
2016 Jeep Wrangler Unlimited Toad
27 REPLIES 27

tommykelly
Explorer
Explorer
Seafoam yes

mowermech
Explorer
Explorer
Look up the MSDS for both, and compare the ingredients.
Use that information to decide which to use.
I use STA-BIL exclusively.
CM1, USN (RET)
2017 Jayco TT
Daily Driver: '14 Subaru Outback
1998 Dodge QC LWB, Cummins, 5 speed, 4X2
2 Kawasaki Brute Force 750 ATVs.
Pride Raptor 3 wheeled off-road capable mobility scooter
"When seconds count, help is only minutes away!"

SDcampowneroper
Explorer
Explorer
when we change fuel filters in our diesels, we fill the filter full with seafoam, run the engine. My 7753 bobcat skid steer with kubota 4403 engine has 5600 hrs. on it.
Camp mixed gas for 2 stroke engines- blowers, chainsaws,string trimmers- sits for months when we are closed. Seafoam lubes, stabilizes and cleans those motors.
Seafoam for everything.

4aSong
Explorer
Explorer
Another vote for Sea-foam. Used to use Sta-Bil until I did further research many years ago and found that Sta-Bil was only a fuel stabilizer. I use only Sea-foam today.
I have a Honda generator that can set 4 or 5 months and starts right up on the second pull of the starter rope. Sea-foam has my vote.
M & N

Tundra TRD V8 4x4 w/Leer Shell
EU2000i * Prodigy * McKesh * Trek * Renogy * ENU

ScottG
Nomad
Nomad
Another vote for SF.
It's the only "snake oil" that has ever done anything for me.

EV2
Explorer
Explorer
Years ago, we used stabil religiously and had bad carberator problems more than once. Then, had a snowmobile score a cylinder due to fuel/oil problems. We switched to Sea Foam and for over 30 years it has performed flawlessly in mowers, autos, motorcycles, snowmobiles, snow blowers, chain saws, RV, generators, log splitters, yard blowers, trimmers, edgers, and boat motors without exception. Choice is yours, but I will only use Sea Foam.

Jayco23FB
Explorer
Explorer
dbbls wrote:
Another vote for Seafoam.


X2
Jayco G2 23FB
2007 Chevrolet 2500HD 6.0L

John_Joey
Explorer
Explorer
Seafoam is a cleaner AND a stabilizer. Stay-bil is only a stabilizer. For a little bit more money why not clean the fuel system while putting it away for the winter is my motto.
Thereโ€™s no fool, like an old fool.

wa8yxm
Explorer III
Explorer III
A few years ago I read a comparison of Sea Foam v/s Sta-Bil. at that time Sta-bil was only one formula, same for SeaFoam

The consensus was that SeaFoam worked well with adulterated gas (E-10) but Sta-Bil... Not so good, it did not play nice with alcohol.

Today I see Sta-Bil has a special formula for Adulterated Gas (Gas-ahol)

SeaFoam is what I put in my tank when the engine blew in 2014, and the generator still starts just like it did in 2014.... I'm hoping to get a new engine SOON. in fact I'm bugging the mechanic, theory has it he should be ready tomorrow but he keeps making excuses.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times

dbbls
Explorer
Explorer
Another vote for Seafoam.
2011 F-350 CC Lariat 4X4 Dually Diesel
2012 Big Country 3450TS 5th Wheel

Sam_Spade
Explorer
Explorer
SeaFoam was originally designed as a fuel stabilizer for marine applications.
It also has light duty cleaning properties.

But if Stabil has been working for you, why worry ??

I don't know how SeaFoam ranks as far as a stabilizer but I do know that there are MUCH better products for fuel system cleaning.

And I tend to trust companies more if they do NOT claim that their product will do 14 amazing and wonderful things. I prefer the right tool for the (one) job.
'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"

10forty2
Explorer
Explorer
Seafoam will work as a stabilizer too. In my personal opinion, it's the best, but I'm sure there are arguments for and against. I've had great luck with Seafoam in practically all my internal combustion engines for years. My motorhome probably sits the longest between fillups, and so far it cranks and runs like a sewing machine. In fact, I was able to make the genset run (it was clogged up with old fuel varnish) without replacing the carb when I first got the coach by soaking the bowl and float and running raw Seafoam through it. Now, it runs like a charm and I keep 1oz/gallon of gasoline in every fillup.
1999 Holiday Rambler Endeavor, 36' Gasser
Triton V10, Ford F53 Chassis
-----------------------------------------

midnightsadie
Explorer II
Explorer II
sea foam is a cleaner I use it in four boat motors and around the house, I use stabil for the winter months. when equipt sits for months not in use.I,ve never had a fuel problem.