As to all the discussion about MMO

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Originally Posted By: Quest
Why would you mix MMO with 2-cycle oil? In other words: what are you trying to achieve?

Myself using JASO FC semi-syn 2-cyl oils for my genset and trimmer (Castrol Activo / Esso 2-cyl oil mix) with excellent results and never a single worries about lubricity (lubricity problems with 2-cyl engines typically comes as seized piston(to bore),due to insuffucient lubrication or lubrication breakdown).

Q.

To have an additional cleaner/stabilizer/lubricant in there besides just using a stabilizer like Lucas Ethanol fuel stabilizer/Stabil/Starbrite.
 
Originally Posted By: Darkfire
Originally Posted By: Quest
Why would you mix MMO with 2-cycle oil? In other words: what are you trying to achieve?

Myself using JASO FC semi-syn 2-cyl oils for my genset and trimmer (Castrol Activo / Esso 2-cyl oil mix) with excellent results and never a single worries about lubricity (lubricity problems with 2-cyl engines typically comes as seized piston(to bore),due to insuffucient lubrication or lubrication breakdown).

Q.

To have an additional cleaner/stabilizer/lubricant in there besides just using a stabilizer like Lucas Ethanol fuel stabilizer/Stabil/Starbrite.


All the 2 cycle oil I see in store like Lowes and HD has stabilizer in the oil.

If you want to spend your money allocated to 2 cycle OPE, then get a QT of the pure gas/oil premix for about $9.00 and use it. If you are 40:1 you will need to add some extra oil.

Leave the mystery of MMO to Captain Marvel & others.
 
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Originally Posted By: Darkfire
[To have an additional cleaner/stabilizer/lubricant in there besides just using a stabilizer like Lucas Ethanol fuel stabilizer/Stabil/Starbrite.


I'm not aware of any fuel stabilising qualities in MMO.

I'm only aware of fuel stabiliser additives sold specifically for the use of stabilising fuel (for longer storage life/prolonged fuel stability, etc.) brands suchas Stabil, Starbrite, B&S freshstart, MortarMeister fuel-stabiliser additives, etc. works (used all these mentioned products with satisfaction).

I'm with Donald on this one: get something that best suits the job.

Q.
 
Originally Posted By: Darkfire
I have a question about MMO:

Can MMO be used as a partial oil substitute in a 2-stroke application (141cc B&S R*Tek engine in a snowblower) in the same percentages as with 4 cycle applications--that is 10% to a maximum of 25% of the oil?

Or to put it another way--say I were to use a 32:1 ratio of gas to 2 cycle oil--and instead, I used a 40:1 ratio of the oil itself, and then the remainder of that was MMO to get down to 32:1.

Would this risk more wear than if pure oil itself were used for the entire ratio, and if so--should MMO just be used additively on top of whatever ratio you were using, without diluting the straight oil ratio itself (i.e. use 32:1, but then still add 1 oz MMO per 2.5 gallons on top of that)?

Thanks for your help.


Since you asked a question hoping for an answer I'll try and give you one. Lots of lovers and haters of MMO here, sadly most of the haters never tried it, such is life, such is Bitog lately.

MMO is safe for use in 2-cycle engines. They suggest replacing 25% of the 2-cycle oil with MMO. I add 2 ounces to a gallon of gas and use the regular amount of TCW3. I picked that trick up from a landscaper friend, he claims he spends less time messing with the carbs [gumming up, etc.] on his two cycle equipment since he started doing that 20+ years ago. It made sense to me.

There are better fuel stabilizers if that's what you're after.
 
Originally Posted By: demarpaint
Darkfire said:
MMO is safe for use in 2-cycle engines. They suggest replacing 25% of the 2-cycle oil with MMO. I add 2 ounces to a gallon of gas and use the regular amount of TCW3. I picked that trick up from a landscaper friend, he claims he spends less time messing with the carbs [gumming up, etc.] on his two cycle equipment since he started doing that 20+ years ago. It made sense to me.

There are better fuel stabilizers if that's what you're after.


I wonder if seafoam wouldn't work better for keeping carbs clean?
 
Gary is 100% correct. I am one of the many who has tried MMO (both in the oil and fuel) and so no benefit. In fact, I saw my MPG drop in one of my two vehicles.
 
I now add a very small amount of MMO (about a cup, 8z) as top off oil midway into the oil change. I believe this makes my older oil last longer and perform better closer to the end of its use interval. Maybe in the winter to thin oil down I might brake the rule and use more. I would never add as much as 1 quart for every 4 to 5 quarts like they recommend though.

In fuel it seems like it may have benefits for today's E10 fuels. Anyways, I got decent mileage (28+) on a trip to NYC with MMO added to the fuel. I add a little bit less than they recommend. Yes this is not really any data, just guesses and perceived observation.

Anyways, I really like MMO. I doubt it does any harm used like this.
 
Originally Posted By: ueberooo
I now add a very small amount of MMO (about a cup, 8z) as top off oil midway into the oil change. I believe this makes my older oil last longer and perform better closer to the end of its use interval.


There are some oil additives that specifically designed to keep the oil from oxidation (LC60 is the one I'm talking about). So, why dwelling on MMO?
 
Originally Posted By: ueberooo
I now add a very small amount of MMO (about a cup, 8z) as top off oil midway into the oil change. I believe this makes my older oil last longer and perform better closer to the end of its use interval. Maybe in the winter to thin oil down I might brake the rule and use more. I would never add as much as 1 quart for every 4 to 5 quarts like they recommend though.

In fuel it seems like it may have benefits for today's E10 fuels. Anyways, I got decent mileage (28+) on a trip to NYC with MMO added to the fuel. I add a little bit less than they recommend. Yes this is not really any data, just guesses and perceived observation.

Anyways, I really like MMO. I doubt it does any harm used like this.


I use it as make up oil from time to time in my Aerostar, especially if I'm adding oil late fall or during the winter. I like the better cold starts when its real cold, and I know it is keeping my 202,000 mile engine clean. IMO there's nothing wrong with what you're doing.
 
Originally Posted By: FXjohn
Originally Posted By: demarpaint
Darkfire said:
MMO is safe for use in 2-cycle engines. They suggest replacing 25% of the 2-cycle oil with MMO. I add 2 ounces to a gallon of gas and use the regular amount of TCW3. I picked that trick up from a landscaper friend, he claims he spends less time messing with the carbs [gumming up, etc.] on his two cycle equipment since he started doing that 20+ years ago. It made sense to me.

There are better fuel stabilizers if that's what you're after.


I wonder if seafoam wouldn't work better for keeping carbs clean?


I don't have much experience with Seafoam, other than adding it to gas, and not noticing any differences at all. Some people swear by it. I'd be a bit concerned adding it to a 2 Cycle engine, but if the company that makes Seafoam says its OK, give it a shot. The product has made the test of time and has a good following.
 
If one is worried about oil being too thick in the winter time, use synthetic or look at the viscosity chart for your engine and possibly change grades for the colder weather. Lubrication has come a long way and MMO while tried and true is in the stone ages from a lubrication technology standpoint.
 
LOL To each his own, but I must say I do enjoy these threads. Stone age tech that does a fine job cleaning an engine, and certainly hasn't shown harm in modern UOA reports. In fact it still gets synthetic oil flowing faster in the cold, as proven to me by my oil pressure gauge and pre-luber in use since 1988 with Synthetic Oil.

Should MMO be used all the time in the oil? Some people do, I don't. If a lifter starts ticking, sludge is present, oil use spikes, or a person feels the need to clean an engine, I say go for it. If you live where its extremely cold, give it a try in the oil during the winter, you might be pleasantly surprised. JMO
 
I would imagine that part of the reason MMO helps on cold starts is that it's so much thinner than most engine oils. Perhaps a lot of MMO's perceived benefits -- and perceived problems -- could also be had from a thinner oil.
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Originally Posted By: d00df00d
I would imagine that part of the reason MMO helps on cold starts is that it's so much thinner than most engine oils. Perhaps a lot of MMO's perceived benefits -- and perceived problems -- could also be had from a thinner oil.
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Perhaps, but probably lacking the cleaning abilities of MMO.
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somebody mentioned that conventional oil 'spiked' with some MMO has better high temperature resistance, even though MMO has a lower flashpoint than the oil it's in. Not sure what the proof or evidence for this claim was, but supposedly it was tested in some way.

I also somewhat suspect the the solvent like property and thin viscosity grade of white oil make it sort of an emulsifier of sorts and go between between different components in synth and conventional blended oils, when used in smaller % quantities. Nobody really nose though which is what's so great about this 'Mystery' oil, in addition to the nice minty smell of it. I'm beginning to love this stuff and think I'll use it regularly from now on.
 
More is known about MMO than you think. Dyson's paid-subscription weblog has a fair bit of info and expert discussion about its composition, capabilities, and usage.
 
I just bought my first used car in 24 years, an old 1998 Jeep XJ I want to restore. I'd not consider any of these additives in any cars I own except this car. I have 7 cars in total, all under ~5,000 miles, all with factory warranty, and all but 2 with full maintenance. None are my problems, no matter what.

I put MMO in the crankcase of the Jeep for sharts and giggles after reading this site. When in Rome, right? Do I expect anything? Nah, I'm having a problem finding time to burn a quarter tank of gas in this Jeep. Maybe I'll look in the oil filler hole one day and see a "cleaner" view? I still have my first ever Redline SI-1 purchase in this tank of gas and I bought the car in late July. Tank is just about 1/4 full now, September 25th.

If the thing runs "better" after I burn through a tank or two, Ill let you know. But it will be tough to notice. I replaced all of the engine gaskets and "moving" parts except the pistons, rods, crank, cam. I have no idea what kind of fuel economy this thing gets either. so I can't comment about a 1.453 mpg savings yet.
 
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I recently bought the '98 Saturn in my signature, and sure enough it burns about a quart every 750 miles. When I bought it, the car got a bunch of oil changes in succession because the previous owner had the oil changed before trading it in (sticker was still on the windshield), the car lot changed the oil before delivering it to me (watched them do it) and I changed it about 500 miles later because it was at 125k and I'm planning 5k changes and I like easy math.

When it got a little low, I used MMO, and that seemed to slow the burning considerably. Also, the oil, as expected, was REALLY clean from all the changing, but within 100 miles of adding MMO, got much darker. I don't know what any of this means, just giving my observations.
 
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