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Marvel Mystery Oil

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Originally posted by pcarlson

"Marvel Mystery Oil is used in this experiment because it is chemically similar to crude oil. "
That's not what MMO's Material Safety Data sheet says. It's classified as a solvent.

If you want to gain lubricity use biodiesel. B1 biodiesel (1% bio) increases lubricity by 65% over straight #2.
 
MMO

I have never used Marvel in my trucks. Really don't know why.

However, I owned a Cessna aircraft. Almost every year I had to replace a cylinder or two at annual. You could figure over a grand each with labor. The previous owner had the same problem.

Three years ago I began running Marvel in fuel and oil. Since, not a single cylinder has lost compression. In fact, they went up. One cylinder was at 62 pounds and went to 78! Cylinder loss was for various reasons from rings to valves.

This is engine has over 2000 hours on it now. The TBO is 1800. I started using it at 1750 hours. The engine is going strong still. The only thing that has changed is the use of Marvel.

I run it in my daughters car with 150,000 miles on it. I also ran it in my jeep that didn't get ran very often.

We run #1 fuel here in the winter. Occassionally, I can get mixed #1 and #2. I have been using Power Service with cetane boost. I do notice a bit if difference with mileage/performance. Perhaps I will run a tank with MMO and see what happens. I am curious as to why there have been issues with senders though.

Why can't I ever get the fuel mileage that others claim. My 03 HO with my camper is only getting 10-11. Without the camper, 16. 5. I am not lead footed. I know it will go up a bit with #2 fuel and after it has broken in some. I hope it goes up a lot.
 
Originally posted by illflem



If you want to gain lubricity use biodiesel. B1 biodiesel (1% bio) increases lubricity by 65% over straight #2.



:( Unfortunately for those of us up here in Alaska, I doubt we'll see any biodiesel anytime soon. While our regular diesel comes from local refineries, we don't have anybody making biodiesel commercially to blend with. In order for any blend of biodiesel to be offered up here they'd have to bring up the straight biodiesel on the barge from Bellingham or something.



Mike
 
My understanding is that MMO was very popular in airplanes after WWII, you would see drums of it at most airstrips. FFA banned it in the 50's because they wouldn't disclose what it's made of. It is however used and nothing said about it ( both in the oil and fuel).

Some people swear by it, others just swear it is of no use. They cannot get a FAA opinion because it is not authorized. Airplanes now use a similar additives, of which there are hundreds available.



I've seen it melt rubber after prolonged contact, I won't touch the stuff.



Mike, give it a couple years and bio will be everywhere, the industry is in it's infancy. In 2000 there were 5M gallons produced, '02 had 25M, it is expected by '05 to top 500 million.
 
illflem, what do you know about the lubricity of bio-diesel? I read reports of both extremes. I ask out of concern for our beloved (humor) VP-44.
 
MMO in aircraft engines

I know a mechanic that tells me that the carbon build up is less than without, and it's a softer carbon that's easily removed.

FWIW

Eric
 
Originally posted by Tejas Deezul

illflem, what do you know about the lubricity of bio-diesel? I read reports of both extremes. I ask out of concern for our beloved (humor) VP-44.
Tests by Stanadyne Corp showed that B1 biodiesel (1% bio) increases lubricity by 65% over straight #2.

You hear folks talk about all the problems with bio but many are trying to run it straight, something that will never happen mainstream. Most folks in the biodiesel industry figure 5% (B5) will be the absolute max blend we will see in common usage. That would be 325% more lubricity than straight #2.

That should be enough to save even a VP;)
 
I am NOT advocating MMO, and after reading earlier posts here about it, I quit using it, BUT;

On my '93 Dodge Cummins, I used it consistently for the entire 125K miles I had the truck and it never so much as burped; The original fuel sending unit was still doing fine and the truck ran as good as new when I sold it. The absolute only problems I had with the truck were with the Getrag transmission and the differential---they did not get MMO. Did I shorten the engine life?? I sure don't know, but if it has ill effects, they must be long term.





Vaughn
 
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