faye x7

MMO = Marvel Mystery Oil..but why is it called that and how does it do exactly what it says it does.

I ask cuz I just bought a quart of it at the auto store along with some carb/choke cleaner.

Anyway, hope some of you know what I'm talking about. Thanks!

Cody

Taste it, you'll see.

RallyProbe555

One, it smells like candy.
I don't know what else it does, but it certainly smells like candy. MMO is used religeously on this board, so I'm sure someone has a good answer.

faye x7

It smells like mint candy....hmmm..

Actually it smells like cork grease I use on my clarinet. haha

matthewpims

MMO is a refined type of two-stroke oil. Naturally when 2s oil is burned it coats the combustion chamber with a fine layer of oil, thus lubricating 2s's. Any mechanic will know the difference between a wet and dry compression test, in short durring a wet test oil is added to the combustion chamber (in a boinger it helps seal the rings and thus raise compression back up) thus helps the tech narrow down where the compression is being lost and what repairs need to be done. So when 2s oil is run in the gas and burned with the fuel it produces a light film of oil on the side of the combustion chamber in effect acting like a constant opering wet compresstion test. In a boinger mmo will raise compression substantially ona worn out engine (raised the comp on my storm from 154ish to 180 all along the board) In a rotary mmo helps lub the apex seals and side seals past what the normal omp and oil feeds can do, thus making them rev smoother, run cooler, and it also boosts compression. Try it if you havent already, put 1 oz of mmo per gallon of gas in your 7. You dont really have any smoke, and you can tell a difference

bliffle

Yup. Makes your engine run smoother and quieter. And that's got to lead to longer engine life and fewer problems.

Smells like valve oil for my trumpet. Reminds me of an old GF whose embrouchere I admired.

B

Forseti

I have used it on both my 1G and TII with no ill effects that I can tell. I had always thought it was just a kerosene based injector cleaner.

All I know is I won't ever use ATF again with the way it blows smoke.

terencet

nOOb here...

what's the diff between MMO and regular 2s oil then? can you use m/c 2s oil instead? In another thread, i've brought up a product call Miltec-1, i've used on my gun and a wrx/audi with "result" (as in the wrx took extra long time to break in, maybe because it's internal got so 'smooth')

anywho, how often do you need to run MMO?

matthewpims

As far as I can tell there isnt much of a difference between mmo and other 2s oil's. Other oils smoke tho, mmo does not, perhaps it because its more refined. MMO also has very strong deturgents in it, so while its lubin up the side housings its cleanin em off too! I use one oz of mmo per gallon of gas every tank. I notice an immediate difference if I dont add more when I fill up, you can litterally sit there and watch the idle get shittier as the mmo burns off.

matthewpims

OOOps I forgot, because oil is a petrolium product and when burned ups your hc's if you have emissions check and a catalytic converter I wouldnt run mmo. Too much oil consumption will drive your cats super hot and melt them down, and if you try to echeck when mmo in the tank you fail with flyin colors! With no cat my hc's jumped from around 1000 ppm to well over 4000 ppm, the passing hc's around here for echeck are like 500 lol

inittab

I premix my gas with TC-W3 2-stroke oil and my car does not smoke. Besides, 2-stroke is WAY cheaper than MMO.

RacerX7fb

Thats the 'Mystery' of it Youre in Illinois.. run on down to the plant and bang on their doors.. ask em WTF is in this ?? its damn good stuff

bliffle

I use 2S oil in one car: it's about the same price as MMO and MUCH thicker. And sometimes I get white smoke upon starting. MMO or 2S, I use 8 oz. per tankful.

The point about smog is interesting: Think I'll cut out the MMO for smog tests (especially with this new CA dyno test, which is keeping one car off the road).

I think MMO is a fine machine oil (like sewing machine oil or 3-in-1) with detergents. Thus, it dissolves crap in the fuel system, lightlly oils the combustion chamber nicely, and burns away gracefully. Put some in a little spray bottle and you can use it in place of WD40 or Liquid Wrench.

B

Wankelguy

Nobody really knows for sure.

It's both a marvel and a mystery.

inittab

cdrad51

Can I try it even if I don't pre-mix, i.e. addittional to what normal oil the omp supplies to the engine?

180sx-x

yea, and with MMO, do i need 2 change my fuel filter more often(i havent seen this q yet)

matthewpims

ya go ahead and try it, I run 1oz per gallon and the omp is still hooked up, see the mmo is much cleaner than oil from your crank case, hell even with the omp and mmo I dont see hardly any smoke unless I really get on it and the engine gets hot, as far as the fuel filter goes, I would seriously doubt it would shorten the filters life, after all mmo is basically gasolene if you think about it

faye x7

How do you know it's basically gasoline if no one knows what's in it? heh

ray green

iTrader: (14)

Judging from the common misconception that the oil in the combustion chamber of a rotary engine gets burned, I'd have to say that one of the mysteries about MMO is that when you put it in your 7's gas tank, almost none of it gets burned - it ends up mixed with the engine oil. Of course this is also true of 2 cycle engine oil when added to the gas and for the oil delivered by the OMP.

Ray

Wankelguy

Please explain how this happens, Ray.

ray green

iTrader: (14)

I'm flattered by the presumption that I might know the answer to Wankelguy's question, however without doing some research and maybe even with some, I don't have a clue. But I'm pretty much convinced now that the oil is returned to the crankcase because when I started adding MMO to the fuel, my engine oil consumption was virtually eliminated. And another forum member reported an actual INCREASE in engine oil levels after adding oil to the fuel. So, being a scientist, I figure there must be a rational explanation for this and, not knowing any better, I would hypothesize that there is some kind of plumbing and pump that salvages the oil and returns it to the crankcase. In fact, Atkins rotary mentions something about this on their web page (question 68, as I recall), but their explanation of how it actually happens wasn't very helpful, for me at least. What we need now is a Mazda engineer to tell us how this is done - anybody?

Ray

nlc1179

it smells minty and red. taste it........

Jeff20B

iTrader: (13)

Hey Wankelguy, I'm going to give ray green a break since he's new.

ray green, did you know that rotaries tend to dilute their oil with gas? Yep, there's your answer. At least it's better than what boingers do to their oil.

faye x7

It would seem the mystery continues. heh Interesting to hear people's thoughts though.