I recently purchased a case of 6 cans of Sea Foam, and have some questions about using it correctly please. I plan on using it on my 1985 Mercedes Benz 500SEL. It has over 200k miles on it, and is currently on it's second motor & auto transmission. I purchased this product because I read so many positive reviews on Amazon for it, after I started experiencing a strange hesitation from my car. It was as if the motor was racing and slowing down quickly in succession. My rebuilt auto transmission has less 20K miles on it, so I think the problem is coming from the motor. I purchased Sea Foam in the hopes of avoiding an expensive mechanics visit, and am hoping someone can tell me how to use this product beyond what the vague instructions on the can say. I plan on putting a whole can in my crank case, since my car uses about 9 quarts of oil, and also a can in my gas tank, and maybe sucked into my fuel line.

After installing Sea Foam into my car, do I drive my car around for a while, or just let it sit with the motor running? And for how long should I leave the motor running? I rarely use this car anymore, so I want to make sure I leave the motor on enough to get the best results. If anyone here has experience with Sea Foam..please let me know what I need to do and thank you kindly.

Mercedes don't like fuel additives,but using seafoam thru a vac line works good.I sucked the whole can up and shut down the engine for 15 minutes,then drove the piss out of her until exhaust turn clear again.Then I changed spark plugs.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Thanks for that tip. From what I've read on the Amazon reviews, driving her or letting her run until the exhaust turns clear is the way to do it.

I throw a can in the gas tank when its gets down about 1/2 way every now and then. Seems to clear things up a bit, idles better too.

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Streetside: 1987 Mercedes 300E Petrol Blue/Green
2014 Ford Mustang Grabber Blue
1999 Ford Ranger Green

Dockside: 1968 Eltro 17
1985 Silverton 34C

Good idea on doing it with a half tank. Nice to know someone with an 80's MB is doing ok with this product.

I use marvel oil alot to lube pump,and injectors in my 83 w126 diesel,gives me 2 mpg better mileage.But in my 99 gasser,I only use seafoam.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

When I purchased this car, I was told to always use Marvel Oil at fillups, and I did for a few years but then forgot about it. I'll make sure and get some more after I do the Sea Foam. Thanks for the reminder!