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Posted by: JB 914 Jan 12 2007, 01:30 AM

Ok, their is a thread on my boating forum talking about using marvel mystery oil to keep the engine clean, fuel system & tank clean, ect.

alot of guys swear by this stuff that it makes the engine run better, keeps it clean and helps keep the tank clean.

anyone ever use it? is it snake oil or does it actually do some good?

Posted by: So.Cal.914 Jan 12 2007, 01:35 AM

We used it on old engines, and it does clean thing up and unclog oil passages.


Edit
Hey jkeyzer what am I chopped liver? Well now you have heard from others I

guess maybe I wasn't lying.

Paul

Posted by: jkeyzer Jan 12 2007, 01:43 AM

I have always thought it was snake oil. I would be interested to hear if anyone has any first hand evidence that it does anything beneficial. I think there is something wrong with putting a muscle car product into a Porsche.

Posted by: JB 914 Jan 12 2007, 01:47 AM

QUOTE(jkeyzer @ Jan 11 2007, 11:43 PM)

I have always thought it was snake oil. I would be interested to hear if anyone has any first hand evidence that it does anything beneficial. I think there is something wrong with putting a muscle car product into a Porsche.

Posted by: Twystd1 Jan 12 2007, 02:33 AM

Aaron uses Marvel Mystery Oil in his underwear....

I dunno why...

If you don't believe me......

Shake his hand..... Now go smell your hand...

SEE... I TOLD YOU SO......!!!!!!!



So Joe, hows the engine swaps/builds going???


Twystd1

Posted by: Aaron Cox Jan 12 2007, 03:58 AM

ive used it to lube air tools......

Posted by: crash914 Jan 12 2007, 05:11 AM

its like electrical magic smoke.....

Posted by: pfierb Jan 12 2007, 05:45 AM

At one time years ago I had a Corvair that I installed a Judson supercharger on it had a glass tank that was to be kept filled with Marvel Mystery oil as per Judson's instructions also a Chicago Pneumatic air wrench that CP wanted lubricated with the stuff.....So I would assume that Marvel Mystery works,never had any trouble with the air wrench or the supercharger.

Posted by: Jake Raby Jan 12 2007, 06:24 AM

Yep, I use it... I use a shot glass full in every tank of fuel and a week before an oil change I'll dump a cup full in the oil sump..

It is the best upper cylinder lubricant and the only oil that I have ever seen that claeans AND lubricates..

I even use it to clean and lube rifles, pistols and shotguns..

Posted by: Ferg Jan 12 2007, 08:43 AM

It unstuck my sometimes sticky lifter. No sticky lifter since , plus I feel better knowing the inside of my engine is cleaner

Ferg

Posted by: jd74914 Jan 12 2007, 10:06 AM

We unfroze a Chevy engine with it . . . in a few weeks I'm trying it in an Olds Rocket 303 that my dad rebuild almost 30 years ago and never ran (this one's not frozen, but I'd rather be safe than sorry).

So in my experience it does work very well.

Posted by: brer Jan 12 2007, 10:24 AM

I am told that when added to the gas tank it is also lubricates the injectors and that using it will extend their life.

very important in my opinion with the cost of ours.

Posted by: mikez Jan 12 2007, 11:37 AM

It's good in gas tanks for good running motors....I prefer Techron or Seafoam for ones that have issues.

I have used it as a penetrant for stuck motors.....

Posted by: Crazyhippy Jan 12 2007, 11:40 AM

No experiance w/ cars, but use it as an additional lube in my outboard (2.5liters, and 330HP turning just over 10,000 rpm)

BJH

Posted by: Cap'n Krusty Jan 12 2007, 11:46 AM

Dyed and scented Kerosene, more or less. Works as advertised, though. The Cap'n

Posted by: whatabout1 Jan 12 2007, 11:55 AM

Used to add it to the gas in the early electric fuel pump days.
Those pumps liked to sieze after running them out of gas a few times.

It cured the problem. Also used Seafoam.

b

Posted by: jfort Jan 12 2007, 05:47 PM

i had good experience with their transmission oil additive on an old mercedes.

Posted by: Brando Jan 12 2007, 11:40 PM

Marvel Mystery oil... Works great as advertised. I ran it through as a detergent on my 944 pre-oil-change and it not only cleaned out the passages good but it unstuck the sticking hydraulic lifter and made things simple quiet again.

Posted by: JB 914 Jan 12 2007, 11:59 PM

thanks for all the feedback. i'm going to give it a whirl on my boat engines and fuel tank.

I heard Twsdtd1 uses it as a sunscreen and insect repelant when he's in Mexico.

Posted by: Crazyhippy Jan 13 2007, 01:18 AM

Twysted1 needs not repelant of any kind, as nothing is attracted to him (besides Aaron). Might be useful as sunscreen though.

BJH

Posted by: Aaron Cox Jan 13 2007, 02:39 AM

QUOTE(Crazyhippy @ Jan 12 2007, 11:18 PM)

Posted by: JPB Jan 13 2007, 07:49 AM

One of them items aircraft mechanics swear by. Dollar for dollar, this product is by far the cheapest form of maintenence as in not having to use the whole bottle to get results and engine cleaning/protection.