Marvel Mystery Oil increases engine HP?

[V8COOPMAN]

Originally Posted by FrankWest

I have heard many stories about adding Marvel Mystery Oil to you oil and gas can increase the performance of an engine. Increase HP?
Has anyone experienced this effect?

I'd bet that if you could find a real engineer, or real physicist actually WORTHY of that title, he or she could likely explain how simple it should be to understand the basic physics necessary to increase performance in an internal combustion engine. DD

[Simonpie]

A few years back there was a 2 stroke test that ran a mototrcycle on a dyno with progressively lower gas/oil ratios. The thing made more and more power each step until it fouled out a plug at somewhere around 7 to 1. The mechanisms can be lowered friction from lube, higher compression from the unburned oil, and in an old 4 stroke, better compression from freeing stuck valves or rings. If your lifters are noisy, your valves either aren't closing, or with hydraulics, aren't opening fully. If MMO fixes the noise, it fixes the compression too.

[V8COOPMAN]

Originally Posted by Simonpie

A few years back there was a 2 stroke test that ran a mototrcycle on a dyno with progressively lower gas/oil ratios. The thing made more and more power each step until it fouled out a plug at somewhere around 7 to 1. The mechanisms can be lowered friction from lube, higher compression from the unburned oil, and in an old 4 stroke, better compression from freeing stuck valves or rings. If your lifters are noisy, your valves either aren't closing, or with hydraulics, aren't opening fully. If MMO fixes the noise, it fixes the compression too.

I guess I was kind of stupid to assume we weren't talking about a worn-out engine with sticking, ill-fitting valves, broken rings, leaking lifters and combustion chambers full of carbon. DD

[Y-Blockhead]

If'n your lookin' for more HP just add some of that Slick 50 Supercharged. http://www.slick50.com It works, sez so right on the bottle...

[Bill's Auto Works]

These "Snake Oil" products, regardless of whether you put them in the fuel or the oil do one thing & ONLY one thing: clean out a dirty fuel system or oil system. This is how some people get a feeling of more power or better MPG. If you already have a well tuned clean engine you will NOT see any difference. The only other benefit with a product like MMO is the lubricity factor, because of the EPA taking much of the "good stuff" out of oil & fuel!

[Pete]

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I use it in my air line oilers in the shop.
It definitely adds horsepower to my die grinders from lower friction.
Besides that, it smells neat. Kind of like nitroethane.

[Bill's Auto Works]

Originally Posted by Pete

I use it in my air line oilers in the shop.
It definitely adds horsepower to my die grinders from lower friction.
Besides that, it smells neat. Kind of like nitroethane.

I also use it in my air tools & I agree it does smell good!

[29er]

I only use it on my cars that have whitewalls

[montanajohn]

The mystery is that the manufacturer won't tell the customers what the product is made of. The marvel is that people buy it anyway.

[Bob Bidonde]

In my opinion, the best outlook re MMM is,
"Now Bob. IF there was any proof it would no longer be a "Mystery". __________________
Y-Blockhead"

[JBill]

Originally Posted by montanajohn

The mystery is that the manufacturer won't tell the customers what the product is made of. The marvel is that people buy it anyway.

I dropped a plastic bottle of MMO in my garage not too long ago, and of course it cracked. I picked it up quick (observing the five second rule) and stuck it in a small plastic bucket. The product that eventually oozed out left about an 1/8 of an inch of waxy crud covering the bottom of the bucket. It looked and felt like melted candles!

[Simonpie]

I guess I've always seen MMO in the "addatives" isle. I've always viewed that isle as stuff to limp an old worn motor across the "finish line". I lump MMO in with Rislone, motor honey, and multiple bottles of Bar's Leak. Not a surgeon, just a bandaid. That said, most of them do work to a point.

Note though, the 2 stroke test was done on a fresh motor.

Originally Posted by V8COOPMAN

I guess I was kind of stupid to assume we weren't talking about a worn-out engine with sticking, ill-fitting valves, broken rings, leaking lifters and combustion chambers full of carbon. DD

[burner31]

I'm only thinking of using some to ensure valve movement, if they're getting dirty, maybe a little sticky.
It would be an occasional treatment and not a every fillup type of treatment.
I'm getting ready to start my driving season and plan on doubling my travel distance this year over last, I have a full tank now, next fill up I may give it a try.

[Rocketsled]

The MMO story is that the owner of a garment manufacturing ('sweat shop')
in NYC got many complaints from the stitchers that the sewing machine oil
smelled bad. The owner combined some spindle oil with some Oil of Wintergreen which has a pleasant aroma. Oil of Wintergreen, an organic ester, acts as a detergent.
Modern engine oils sometimes combine different types of synthetic oils to enhance performance. For example a little di-ester is added to PAO to get beneficial detergent action because PAO doesn't accept additives easily. This combination is used in some screw compressors to prevent varnish build up.
Rocketsled

[Terry, NJ]

Tim, I respectfully disagree! MMo's real value is in keeping the engine lubed. But it's great for unsticking stuck engines. (There are some that are too far gone). It seems to be a solvent. You may be right, it's just mineral oil with perfume and coloring, But it seems to get results. And don't forget, it's been around since 1923 (IIRC). That punches holes in the old argument that it's just ATF with a smell. I grant you, ATF will do much of what MMO will do at a lower price. But ATF is a lubricant, while MMO is a solvent. But how does ATF burn in your cylinders? It is not a fuel and to my knowledge has never been tested for it's effects on inner cylinders at 2000 degrees.
Terry

Originally Posted by Timothy Kelly

In my humble opinion, MMO's principal purpose is to separate buyers from their cash.

It is my understanding that MMO is principally mineral oil and a byproduct of refining gasoline.

If mineral oil added value to gasoline, I doubt that the refineries would spend the effort to remove it during the refining process.

Notwithstanding the foregoing, there are many, many individuals who are huge fans of MMO. For some, MMO is able to resolve whatever ailment or problem arises.

To each his own. And as some say, your mileage may vary.

[FrankWest]

MMO is better than these
Duralub engine losers? Funny
https://www.youtube.com/watch?v=8QWPIcGjjZo

[holdover]

MMO = The product is composed of 74 percent mineral oil, 25 percent stoddard solvent, and 1 percent lard.. Got it by doing a search for ingredients of MMO

Just like seafoam you can make it yourself for pennies on the dollar