FREE Marvel Mystery Oil

[usaf ssgt]

Do you really want to open this can of worms ???? It has been discussed at lenght on other forums. Beating a dead dog...

Was this meant for me?
I'm not trying to start any drama, only asked a question.
But from the sounds of your comment, there's more to it, than just a plain and simple answer.

Leon

[airnutz]

Do you really want to open this can of worms ???? It has been discussed at lenght on other forums. Beating a dead dog...

Yes, do tell Michel? Please inform we the ignorant. There's something controversial
about MMO or one of their products? A potential flame war over MMO? (Drags chair closer
..gets another beer.) We flog horses 'round here son, they last alot longer...

Thanks Bipe for the freebee link....

[Fleet16b]

As a regular user of MMO, I would be interested to hear from other users.
Sorry, I never saw any other threads on the subject.

For my part, our group has 10 vintage a/c and we use MMO in all of them with excellent results.
We put some in with every fuel up and also add some into the oil with every oil change.
Most peolpe that I know operating vintage engines be it on a/c, cars, motorcycles, boats etc swear by it.

My Dad was a pilot in the 30's to 50's and remembers it being used then ( or at least some form of it with the same name).
It is so popular here in Canada that when Walmart decided not to stock it anymore an online petition was set up and it convinced Walmart to start stocking it again in Canada so that people didn't have to go to the U.S. to get it.

From the comments above ...I get the feel that there may be some controversy .
Comments ????

[Eric Friedebach]

Thanks for the link, Steve!

I’ll transfer my free sample into one of the many half-empty METAL gallon cans I have around here.

[Jesse C.]

Thanks for the freebie link!

We use it quite a bit on the Dragster and Altered when we flush out the fuel system of alcohol and when we pickle the engines during the off season.

Used the fuel additive and it worked fine, no wacky side effects. Worked just as good as Lucas treatment.

[GARY HILTON]

My John Deere LOVES MMO!....(even plastic bottled) MMO and JB WELD...It just dosen't get any better!.... Gary

[Michel C-GNCJ]

Lets just say that opinions vary widely when it comes to MMO.

Some just love the stuff, others says it does nothing good in an aircraft engine: I have heard some say it was great to add to 100LL for those low compression engines that were meant to burn lower octane fuel. I have heard others say a solvent has no place in an aircraft engine...

Just like the old arguments such as high vs low wing, tricycle vs conventional, you know...

It does smell nice though !

[usaf ssgt]

Thanks for the freebie link!

We use it quite a bit on the Dragster and Altered when we flush out the fuel system of alcohol and when we pickle the engines during the off season.

Used the fuel additive and it worked fine, no wacky side effects. Worked just as good as Lucas treatment.

Thank you Jesse.
This was more like the responce I was looking for.

Leon

[astixjr]

My father started using MMO in his Stearman's 220 Cont. back in the late 70s, when 80 Octane fuel became unavailable in the St. Louis area. Since then we have both used it as a fuel additive (4 oz/10 gal) in everything from W-670s to R-1340s and OX-5s to Hissos. We do not use it with every tank of fuel, usually every second or third tank. What does it do? Does it actually do what it's supposed to do? No idea. I've been told it helps lube the valve system on older engines, but I've never tried it as an oil system additive. I've heard it called "snake oil" as often as I've heard it called "motor magic" but I can say that I've never seen any evidence that it has hurt any of the engines on our museum aircraft.

Like WD-40, MMO has other uses. I use it to oil my air tools and I mix it with water to make lubricating coolant for my Vickers machines guns. Along with Hoppe's No. 9 Nitro Solvent, and deisel fuel, MMO acts as a bug repellant. Used as cologne, it also repells women. And of course everyone knows that you can use MMO to coat Radium faced aircraft instrument dials. It absorbs and deflects the radiation.

[Fleet16b]

Also works as a good laxative if used in small doses .....LOL

[Eric Friedebach]

It also keeps delicate fillets, such as salmon, from sticking to you BBQ grill. Adds a unique smokey flavor that really says “This meat was cooked behind the hangar”.

Here’s a nice little technical overview:

That Marvel-ous Mystery Oil

by Robert Parker

Back in the late 1940s and early 1950s, at military air bases there were 55-gallon barrels labeled MMO (Marvel Mystery Oil). I forget the MIL spec number.... We had charts that told us how many gallons of MMO to put in per tank of fuel.

72 octane is the highest grade of gasoline that can be manufactured without [additives].

80/87 has 0.50 ml TEL [tetra-ethyl lead] per gallon and is dyed RED

91/96 2.00 ml TEL per gallon BLUE

100LL 2.00 ml TEL per gallon BLUE

100/130 3.00 ml TEL per gallon GREEN

115/145 4.60 ml TEL per gallon PURPLE

The amount of TEL in the higher grade fuels has increased the lead build up and fouling of spark plugs, along with valve erosion incidents, reported on some lower compression engines.

You know when you pull a magneto check at the runup area after a considerable taxi to get there, and you are running straight 100LL. You have a RPM drop that is excessive, and run the engine up to a higher RPM for a few seconds and then recheck gives a normal drop.

Why does this happen? There is a bromide chemical in 100LL that is supposed to keep the TEL vaporized and the excess pushed out the exhaust, and this bromide has to be at a certain temperature to work correctly. This temperature can only be achieved in our small engines at 1100 to 1200 RPM. How many of us taxi at this RPM? (If you answered, I do, how often do you have to change your brake pads?)

The automotive gasoline option. There there are two STCs on the market for mo-gas, EAA and Petersen. (I use Petersen's. If you have a question and call, Petersen has an answer for you. EAA has an answer, after 5 different people and the fifth one says let me check and I will get back with you. Sometime they do, and other times that's the last you hear.) Petersen's STC allows for mixing of av-gas and mo-gas. You can put mo-gas in the tank 75% (TEL 0.002 ml) and 25% av-gas (100LL at 2.00 ml TEL) and you have the same 0.50 ml TEL that 80/87 had.

Another way is to run about three tanks of mo-gas and the fourth is a tank of av-gas (100LL) Either of these work OK. That fourth tank however, you will still have the spark plug fouling syndrome.

The TCP/Marvel Mystery Oil option: These are most likely about the same thing, with small changes in the recipe, so as not to infringe on another's copyright. Both are high in detergents to do the cleaning job. Neither should be used for the first time on a high time engine; about half TBO or less should be the cut-off time, for first use.


IN OIL SYSTEM
Use one pint Marvel Mystery Oil about 5 hours before oil change. If screen type system, be sure to clean screen. Then, in the new oil, install one-half pint MMO. This cleans the carbon and sludge collected in the engine passages and crevices and hydraulic lifters, and stores it in the bottom of the oil kidney. Some will make it to the screen, but either place it will be removed at oil change.


IN THE FUEL SYSTEM
Use the directions on the back for amount to put in the fuel per gallon of fuel (4 to 6 oz. per 10 gallons of fuel). MMO goes through the carburetor as a droplet, broken up like the fuel. When it enters the combustion chamber and the gasoline ignites, it is vaporized and soaks into the carbon buildup on cumbustion chamber walls, valve guides, around the valve stem, and on the spark plug. It soaks into the carbon and eventually loosens it up and it goes out the exhaust system.

Now you know how it works, I will neither recommend or not recommend the procedure. Like Fox News says,"I report and you decide". I do know it will help when lifters start to be lazy and not do their job. When valves are beginning to stick, it will free then up. Some people swear by it, some people swear at it, but results is what really tells the tale.

Link to the rest of the article

[skybolt2003]

It isn't an FAA approved additive, so if you get caught using it, or its found in your fuel system after an accident, you likely will have some 'splainin' to do. A lot of people say it does nothing, but one well known overhauler of radial engines recommends it's use on their website.
On another forum people were discussing its use (as in "I use it all the time . . .") and an FAA guy was reading and took everyone to task.
I know some guys with low compression radials were having lots of valve troubles when *not* using MMO.

Do you really want to open this can of worms ???? It has been discussed at lenght on other forums. Beating a dead dog...

Yes, do tell Michel? Please inform we the ignorant. There's something controversial
about MMO or one of their products? A potential flame war over MMO? (Drags chair closer
..gets another beer.) We flog horses 'round here son, they last alot longer...

Thanks Bipe for the freebee link....

[astixjr]

Great post Eric, thanks for the helpful information. As a lineboy at the local GA airport here in St. Louis, I remember when 100LL and 80 became very hard to find in the late 1970s. At the time, the only Avgas available from our supplier was 100 Green. After a few weeks, every airplane on the airport had fouled plugs so the FBO's owner started buying cases of TCP to offer as a free additive. As a lead scavenging agent, it did seem to do the job.

For anyone interested, try looking up a guy named Thomas Midgley on Google or Wikipedia.

[ZeamerB17]

So, did anybody ever get their "free sample" of MMO? I never did.

[bipe215]

I never got mine either. I found the link on the Luscombe forum. I'll check there and see if anyone got theirs.

Steve G