MMO non believers

[Big hammer]

The last two tanks of gas was 100% gas, at least what I paid for. The gas shut off valve had been very hard to turn. Last tank I put some MMO in and then let it run for awhile before closing the valve and letting it run dry. This last weekend drive the shut off valve turned free like new! Also the dripping carb stopped dripping gas at idle! I believe the carb float valve was sticking and needed some cleaning and adjustment but now is working great! Just at the end of this driving season :-(

[WHN]

Wait and see what it will do for noisy valves.

You can lead a horse to water but you can’t make it drink. Enjoy.

[alexiskai]

What proportion or amount are you putting in? I know it's different when you use it in the oil vs in the gas.

[WHN]

Originally Posted by alexiskai

What proportion or amount are you putting in? I know it's different when you use it in the oil vs in the gas.

4 oz. for 10 gallons in gas.

A little more or less seems not to matter.

[Aretino]

Been using MMO for 40 years. Initially used to lubricate my aviation air tools. Since the advent of ethanol laced fuels I find that MMO also helps alleviate the problems with fuel system corrosion. Recently I added MMO to my 2005 4runner with hopes that a false fuel quantity issue might be rectified. After two tank fulls of fuel with MMO (4oz/ 10gal) my fuel tank sensor issues have improved. I feel MMO is a great preventative maintenance additive.

[Beater]

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MMO is great stuff I love it. 2 cycle oil will also help out things, but not as good as MMO

[harryc]

I have an unused gallon MMO that's been setting in my garage for at least 35 years. Do you think it's still roadworthy?

[30 Closed Cab PU]

I use it, but only in a couple of tankfuls per year. When I was using it every tankful, experienced increased deposits on my spark plugs. A couple of others have also experienced this.

[J Franklin]

Originally Posted by harryc

I have an unused gallon MMO that's been setting in my garage for at least 35 years. Do you think it's still roadworthy?

If you don't want it I'll use it!

[1931 flamingo]

ATF is an alternative and less expensive. FWIW
Paul in CT

[Patrick L.]

Originally Posted by Big hammer

The last two tanks of gas was 100% gas, at least what I paid for. The gas shut off valve had been very hard to turn. Last tank I put some MMO in and then let it run for awhile before closing the valve and letting it run dry. This last weekend drive the shut off valve turned free like new! Also the dripping carb stopped dripping gas at idle! I believe the carb float valve was sticking and needed some cleaning and adjustment but now is working great! Just at the end of this driving season :-(

OK. So a fair test would be to allow the car to go back to its old maladies and then try a different fuel additive and try to then make a comparison.

Just kidding, couldn't resist.

[Beater]

Originally Posted by 1931 flamingo

ATF is an alternative and less expensive. FWIW
Paul in CT

about the only thing ATF has in common with MMO is the color

[Werner]

Originally Posted by 1931 flamingo

ATF is an alternative and less expensive.

I certainly do not think so! Comparisons:

ATF is thicker, contains high pressure additives, contains coefficient of friction enhancer; it is not suitable for engine combustion. (Residues).

MMO contains u. a. petroleum, solubilizers, detergents, dispersants, ester oils, PAO.

Only the red color has these two liquids in common.

[oldforder]

I have been using MMO since I was a teenager (60 years ago) in every vehicle and tractor, and small engine. Except the NEW vehicles. Don't how much good its does, but It sure don't hurt.

[Chuck Sea/Tac]

I’ve told the story before. When my engine was new I had a tick in it. The builder told me to put Marvel mystery oil in the gas. I did, and the tick went away. The next tank I didn’t put it in and the tick came back. I’ve been using it ever since.

[M2M]

MMO's placebo effect is real.

[woofa.express]

Originally Posted by M2M

MMO's placebo effect is real.

Hi M2m. If it works, great. If it’s placebo effect, well that’s great too. That's called a win win situation.

[Dodge]

And yes on your 35 yr. Old MMO

[dumb person]

Can't get MMO in my country so i use A.T.F. sometimes.
Smells a bit funny but it does cushion the valves nicely & lubes the stems & tap.
Also seems to reduce the piston slap sound by cushioning them against the cylinder walls on their way up.

Laugh if you want but it's all true.

[Synchro909]

I've never seen MMO here either. I use Flashlube which is made buy a f riend of mine. It is a lead replacement compound that lubricates as well. 1 ml in a litre.

[1946]

I have had a container of "Flash lube" near on full. I added 2ltrs of A.T.F. and 100ml of a solvent and have been using that at a rate of 100ml to a 50 ltr of unleaded fuel. You can get MMO here in Aus. but it is so expensive, i have reserved my container of 3gal for my aircraft motor which is over 70 years old. It can be obtained from AVIAL Pty Ltd at about $80.00+ for 3gal.
When I run out of my present supply of flashlube/aft, I will mix a brew of 3 parts marine grade two stroke oil to two parts AFT plus a minute amount of solvent, good in the toyota 22r motor, 2.2ltr Subaru, and of course the 29 A model.

[Beater]

Originally Posted by dumb person

Can't get MMO in my country so i use A.T.F. sometimes.
Smells a bit funny but it does cushion the valves nicely & lubes the stems & tap.
Also seems to reduce the piston slap sound by cushioning them against the cylinder walls on their way up.

Laugh if you want but it's all true.

how does your plugs handle it? you would be better off to use 2 cycle oil as it will do the same thing but will burn clean and is designed to burn apposed to ATF which is designed to not burn

[dumb person]

Originally Posted by Beater

how does your plugs handle it? you would be better off to use 2 cycle oil as it will do the same thing but will burn clean and is designed to burn apposed to ATF which is designed to not burn

Plugs seem to handle it well. 1 'cap full' with every second fill. Nothing excessive.

[Werner]

I can confirm that, was 'Beater' wrotes.

Two-stroke oil is a good compromise. I do not know if there is a difference in the USA between "self-mixing" and "not self-mixing" two-stroke oil.

For this application is 'not self-mixing' better.

[Beater]

Originally Posted by dumb person

Plugs seem to handle it well. 1 'cap full' with every second fill. Nothing excessive.

honestly I think a " cap full" in a tank of 10 gallons, well, you might as well not bother. that is so little that it shouldn't make any difference .

[DannL]

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I haven't used anything in the gas of my vehicles for over 50 years. I've found the results to be truely amazing. :-)


Oh BTW . . . Picked up a bottle of this snake oil today at Wallymart. At my age I'm willing to try anything.

[fuzes45]

Wally world has good price on MMO

[History]

I hear the stuff is so good that you will now start waking up with a tent already pitched.

Originally Posted by DannL

I haven't used anything in the gas of my vehicles for over 50 years. I've found the results to be truely amazing. :-)


Oh BTW . . . Picked up a bottle of this snake oil today at Wallymart. At my age I'm willing to try anything.

[1928Mik]

I've had great success with both Seafoam and MMO, so I purchase whichever is on sale. My Dad used MMO all the time. (MMO label states it's chemically known to cause cancer in CA, so I guess you shouldn't use it if you are located there!)

[Jeff/Illinois]

And you can try THIS. Works great in all engines.

https://www.youtube.com/watch?v=j2dFX5POvPg

[fried okra]

Fortunately I can buy non ethanol fuel here now in South Carolina, and feel that is a plus for these old engines.

Anyone else agree?

fried okra

[30 Closed Cab PU]

X2, yes, Use it in my A and all my small engines, fill the tanks full with some Stabil 360 when storing, all my storage issues disappeared. No water in the gas or phase separation, no varnishing in the carbs, gas looks good no yellowing/red. Am lucky enough to have a local owned service and gas station in town that sells both standard and premium non ethanol, they do not sell ethanol gas. They also pump the gas for you. More expensive, but less than Premium no ethanol at the chain gas stations.

[holdover]

When I was a teenager in 1962 I saw this with my own eyes. A MMO salesman who also sold other products to the garage, Mortimer Bros garage on New York Ave in Huntington Station LI, I pumped gas at while in HS, came in and said that MMO was so good that we could drain the oil out of his engine , which was filled with MMO, and he would drive a loop around the neighborhood of at least 5 miles and come back to the station. Up on the lift it went, out came the oil saved in a drip tray, even had the dip stick removed before and after to show there was no oil after it was drained. Duke the owner went for the ride, I believe it was a full size 1961 Chev. 4 door with a six cylinder engine. Came back replaced the MMO in the crank case, took an order for a few cases and moved on to his next stop. Duke said he looked and it was no double bottom oil pan, and did not have any oil lines feeding oil like a side oiler. To this day I believe it really ran for 5 miles without oil in the crank case. Would I do something with one of my vehicles like that, NO WAY. We sold a lot of MMO after that demo.

[Karl]

Originally Posted by dumb person

Can't get MMO in my country so i use A.T.F. sometimes.
Smells a bit funny but it does cushion the valves nicely & lubes the stems & tap.
Also seems to reduce the piston slap sound by cushioning them against the cylinder walls on their way up.

Laugh if you want but it's all true.

I use Moreys Upper cylinder Lubricant -Which is probably similar to MMO (who knows) I'm not sure I can tell the difference from using it or not using it in terms of how the car runs. What I have found is that if I use it the gas stays "good " longer if I'm not using the cars as much over winter.

When we replaced the cracked inlet manifold on the V8 the mechanic commented on how clean and completely sludge free the valve train was after 95000 miles. I'm not sure if its the Moreys or the fact that I change the oil without fail (unless on a long trip) every 1000 miles . I also run thermostats which I believe helps with sludge.

I would be worried about putting ATF or anything that is not designed to burn through the Fuel system . While I'm not sure that real studies show commercial gas additives improve things given their survival in the market and lack of lawsuits I suspect that at worst they do no harm . I bet ATF has no studies done regards its use in this application

Karl

[dumb person]

Originally Posted by Beater

honestly I think a " cap full" in a tank of 10 gallons, well, you might as well not bother. that is so little that it shouldn't make any difference .

Who said anything about ten gallons? That's over a months pay for me!
I'm probably getting 40-50 to one mix in 2strke speak.

[30 Closed Cab PU]

From what I have seen here, and what is on an MMO bottle, 4 ozs. per 10 gallons. As the above poster, I incorrectly assumed when you "fill", you were filling from an almost empty tank to a full tank. I assumed incorrectly.

[Bob Bidonde]

I can understand the shutoff valve and carburetor getting deposits from modern gasoline if it is allowed to evaporate in the system. However, every time I put my Model A's away for the day, I run my engines until the carburetor goes dry. I do not put any additives into the gasoline, and I have never had a problem with deposits causing leaks / malfunctions since I got my first Model A in 1962.

[Jeff/Illinois]

Originally Posted by fried okra

Fortunately I can buy non ethanol fuel here now in South Carolina, and feel that is a plus for these old engines.

Anyone else agree?

fried okra

Ab-so-LUTE-ly