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I swear by the stuff...if you have carbs you better have sea foam!
 

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I use seafoam in my car's gas and oil as well as my quad's.
My quads oil still looks almost new because of it.
 

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I swear by the stuff...if you have carbs you better have sea foam!
Yep, me too. I always have 2-3 cans of the stuff in my cupboard. Not just for carbs though, works great on FI stuff too. I've used it in literally every internal combustion engine I've owned in the last 20 years...right down to the chain saw and weed eater.
 

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if i could drink it i would... it's that good.:yeahbaby01:
 

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you'll use it.
 
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For the 400ex, it has the external oil compartment thing, is it okay to use a little in the oil or not? I'm talking like 2-3 ounces or something. It says to put it in gas and oil to clean the dirty shit in the motor. excuse my french. lol :blush:
 

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I use good ol' plain ATF. Never tried the SF, but have heard good things about it.
In all of my ic engines, I add it on schedule to the fuel regularly and to the oil for a few hours prior to a change.

In a coked-up old engine, it will clean one out in a hurry, too. ---So much so that if used too strongly in the oil, it will cause literal chunks of carbon/tar to come loose in pieces, threatening oil flow, so....
(Quality, synthetic engine oil will actually do the same, so FYI!!)

Anyway, I got on to ATF in the fuel/engine, b/c while still in HS I worked at an FBO, and we retrofitted all the light planes with the kits to run on automobile gasoline. Boss was instructed that if he would always mix some Marvel M Oil (~ATF) into the fuel, that he would have none of the usual buildup/etc prob's with the car gas. We were skeptical to say the least, but followed the tip.
Sure enough, it worked wonders on keeping the internals sparkling clean. (LOTS of detergent in it.)
I use this stuff in my parts-washer, I clean my shop-hands surgically clean with it in seconds, (even into the cuticles), as well as feed it to my engines periodically. Way friendly to delicate parts, and unbelievably effective.

Pine oil (this is ~what B&G sells that works so well, but costs $$$$) will also clean an old engine out marvelously, but kills the oil's lubricity at the same time---as will running an engine ~WFO while spraying a mist of hot water down the intake! LoL
 

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Tk how much of the atf do you use in the gas and oil? and also how often is this done i am all about cheap. Thanks Mtn Jack
 

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Does Marvel mystery oil breakdown after time like gasoline does? I've got a oodles of the stuff around here, but the problem is, it's all stuff my grandfather bought, and he's been dead for almost 30 years....
 

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txkawboy i have never heard of using it in gas but i have used it to remove carbon in many vehicles and have seen alot of people use seafaom also i bought a can to use on my 87trx250 and mtc i bet its good but if its in old cardboard cans then it may be more valuable to a collector then to you for use just my 2 cents
 

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on 07 Rancher were do I pour it in for the injectors or do you just put it in the gas and oil??
 
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