marvel mystery oil versus seafom for fuel

[chorusguy 227]

Thoughts?

[Coadster32 793]

6 of one...1/2 dozen of another. I think the majority may sway you to se-foam. (That all depends on which way the wind blows though)

[DougC 2,643]

I use Sta-Bil Store in all mine.

[shallowwatersailor 3,214]

I use MM in my gas as well as Marine Sta-Bil. I like the Seafoam in the aerosol for spraying into running engines.

Seafoam does work in certain applications. I had a Volvo that the PCV valve needed cleaning (sucking up the lube oil) but the location of it required five hours of labor. I squirted Seafoam into the vacuum hose using a baby bottle so that I could control the flow to prevent hydro-lock. Cleaned it well enough that I drove it for six more months before trading it.

Edited November 19, 2015 by shallowwatersailor

[mikekot3 93]

Sta-bil works fine for keeping fuel fresh. For cleaning carburetors and fuel injectors I find Gm recommended Chevron Techron works well.
For cleaning combustion chambers I fine GM top engine cleaner works well.

[JC 1965 1,532]

I use Seafoam and Sta-bil both but everyone has their opinion.      

[WNYPCRepair 1,923]

I was thinking about this last night. Seafoam suggests adding it to the oil as well as fuel. That just seems strange to me, putting something that is apparently flammable into my oil. Has anyone done that, and does it seem to do anything?
 

[Smokey 30]

I live out of town and we lose power every so often. In 2009 after an ice storm, It was 16 days before a repair crew got us back online. Because of that I keep 50 gallons of non-Ethanol gas on hand for the generator.

 I store it with Pri-G and a shot of Sea Foam in each 5 gallon can. I rotate all of through the tractor, mower etc. and I've never had fuel go bad.

 I use Marvel Mystery oil in my Allis CA gas tank but that's the only engine I use it in.  Can't really remember why I started using it in the CA now that I think about it... 

[JackC 617]

I have a 1996 Buick Roadmaster Wagon with the LT1 engine with 106,000 miles. A check engine light came on indicating an oxygen sensor. I added a can of Seafoam to  a full tank of gas and the check engine light went out.  I usually add some to the non ethanol fuel I put in my tractors.

[Sea-Duck51 55]

Not the same application but remember as a young teen working in an Auto Repair shop the old time Mechanic would rev up the engine and dribble Marvel Mystery Oil down the Carberator,it made a smoke screen large enough to kill a swarm of mosquitos,if I remember right he said it helped free up sticky valves or something.

[rick 255]

I use MMM when I fuel the herd with Av Gas, otherwise I use Schaeffer Neutra.

[clueless 3,226]

PRI-G, best and cheapest way to stabilize gas IMO.

 

Chris in Florida. 

[Smokey 30]

I agree, Pri-G has worked much better than Sta-bil for me.  I have to order it from Amazon though since I can't find it locally.

[squonk 43,735]

On 11/19/2015, 2:54:06, WNYPCRepair said:

I was thinking about this last night. Seafoam suggests adding it to the oil as well as fuel. That just seems strange to me, putting something that is apparently flammable into my oil. Has anyone done that, and does it seem to do anything?
 

Ok. First hand account. Brother in law had an Olds with a V-6. Knocked like crazy. I was fixing his brakes when I noticed it. He tells me it's done it for a while. He decides to put Sea Foam in the oil. The knock goes away and never comes back.

 

I buy a Chevy truck  with just over 100,000. When hot there is a valve tick, doesn't go away. One day I decide to put a can of Sea foam in the oil. Drive it 3 miles from work to home for lunch. Start the truck to go back and the tick is gone and never came back.

[clueless 3,226]

24 minutes ago, squonk said:

Ok. First hand account. Brother in law had an Olds with a V-6. Knocked like crazy. I was fixing his brakes when I noticed it. He tells me it's done it for a while. He decides to put Sea Foam in the oil. The knock goes away and never comes back.

 

I buy a Chevy truck  with just over 100,000. When hot there is a valve tick, doesn't go away. One day I decide to put a can of Sea foam in the oil. Drive it 3 miles from work to home for lunch. Start the truck to go back and the tick is gone and never came back.

 

 

Mike, over the past several years I have developed a few knocks and ticks. You think a little sea foam in the Michelob Light might help?  

 

-Chris from Florida

[squonk 43,735]

It might make it taste like Go Lightly but what the heck. Just get a fresh 8 pack of TP before you do! 

[Wheel-N-It 2,976]

MMO always along with sta-bil in my (ONLY) non ethanol fuel. Sea Foam when I want to clean the fuel system.

[Shynon 7,479]

On ‎11‎/‎19‎/‎2015‎ ‎9‎:‎32‎:‎24‎, Sea-Duck51 said:

Not the same application but remember as a young teen working in an Auto Repair shop the old time Mechanic would rev up the engine and dribble Marvel Mystery Oil down the Carberator,it made a smoke screen large enough to kill a swarm of mosquitos,if I remember right he said it helped free up sticky valves or something.

A little off topic, I had the same experience but we used automatic transmission fluid, poured down the carburetor until the motor stalled. Let it sit a couple hours then start back up and run till it stopped smoking. If nothing else it killed a bunch of Minnesota mosquitos.