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Old 09-08-2019, 02:45 PM   #1
Werner
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Default Marvel's Mystery Oil

Good evening, I use with visible success (combustion residues dissolve softly) Marvel's Mysterys Oil. Now I've heard that this fuel additive in California is not allowed due to health concerns (bad cancer ingredients?).

I think that's a rumor?
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Old 09-08-2019, 03:28 PM   #2
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Probably true, likely because it defeats the purpose of emissions controls, and California is pretty sensitive about such things! Here in my part of Indiana we have emissions testing, and I would not put MMO in any vehicle that had to pass our tests. I do use stuff like Seafoam, but I don't think it adds any particulates to the exhaust. Notice I say "probably true," because this is all speculation on my part.
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Old 09-08-2019, 03:59 PM   #3
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Well just another reason to stay the heck out of CA!!
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Old 09-08-2019, 04:19 PM   #4
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Well just another reason to stay the heck out of CA!!
Yea!! Who in their right mind wants clean air Pete
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Old 09-08-2019, 04:30 PM   #5
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Default Re: Marvel's Mystery Oil

I live in the peoples republic,and I can buy mmo by the gallon if if I desire..or just mix mineral spirits and ATF,like they do.
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Old 09-08-2019, 04:31 PM   #6
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Default Re: Marvel's Mystery Oil

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Originally Posted by Werner View Post
Good evening, I use with visible success (combustion residues dissolve softly) Marvel's Mysterys Oil. Now I've heard that this fuel additive in California is not allowed due to health concerns (bad cancer ingredients?).

I think that's a rumor?
Or fear mongering! MMO has probably contributed greatly to clean air by keeping engines running stronger and longer. I use it and it works for me. I worry more about the Pacific ocean and japan's never ending radiation spill!
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Old 09-08-2019, 04:33 PM   #7
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Default Re: Marvel's Mystery Oil

I can still buy MMO here in CA.
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Old 09-08-2019, 04:48 PM   #8
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Default Re: Marvel's Mystery Oil

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Well just another reason to stay the heck out of CA!!
Believe me. We wish people would not come to California and the ones that did move here would leave...
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Old 09-08-2019, 04:49 PM   #9
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Default Re: Marvel's Mystery Oil

Its always been a mystery to me that folks marvel at this product.

But if its banned in California then its probably something that works and now worth looking into more seriously.
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Old 09-08-2019, 05:15 PM   #10
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Default Re: Marvel's Mystery Oil

It is a rumor. Use it all the time here in San Jose Ca.
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Old 09-08-2019, 05:22 PM   #11
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Default Re: Marvel's Mystery Oil

I absolutely love California, it is a beautiful place where you could snow ski in the morning and surf in the afternoon. The place is on my mind all the time, seriously. I love the NC mountains but I hate and I do mean HATE the humidity here. I want to live in California so bad but the people who have control of the state make sure I will not anytime soon.

Mmo is good stuff.
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Old 09-08-2019, 05:38 PM   #12
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Default Re: Marvel's Mystery Oil

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But if its banned in California then its probably something that works and now worth looking into more seriously.
Marvel Mystery Oil is NOT banned in California. If it was, Amazon and other retailers would not be able to ship it here. Amazon will not let you complete an order for something that is banned here.
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Old 09-08-2019, 05:52 PM   #13
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Default Re: Marvel's Mystery Oil

It's been used for years on the A & C series Continental engines for the old light single engine airplanes. It would keep the valves from sticking and reduce problems with the higher lead content of 100LL Avgas. Valve problems went away using it back in the 40s. It works well enough in all the various flathead engines as well. It has to be used properly in aircraft engines though. A few folks that have put too much in have payed a high price. Some folks think that more is always better but the stuff isn't fuel.
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Old 09-08-2019, 06:03 PM   #14
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Default Re: Marvel's Mystery Oil

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Originally Posted by History View Post
I absolutely love California, it is a beautiful place where you could snow ski in the morning and surf in the afternoon. The place is on my mind all the time, seriously. I love the NC mountains but I hate and I do mean HATE the humidity here. I want to live in California so bad but the people who have control of the state make sure I will not anytime soon.

Mmo is good stuff.


I feel the same about the state. Its kinda like NYS, both states are beautiful and have some great people. But governed, well, I not going to get political.
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Old 09-08-2019, 08:54 PM   #15
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My father always said Marvel Mystery Oil would mend anything from a Ferris wheel to a Broken Heart!!
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Old 09-08-2019, 08:58 PM   #16
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Default Re: Marvel's Mystery Oil

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I feel the same about the state. Its kinda like NYS, both states are beautiful and have some great people. But governed, well, I not going to get political.
All I'm going to say is it's governed the way WE like it.

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Old 09-08-2019, 09:44 PM   #17
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Default Re: Marvel's Mystery Oil

I had a dear friend who swore by MMO. He used it in his 41 Fordor fro 40 years and never had a valve problem. In fact his car is still running the stuff under his son's care. I use it in all three of my A's with the same results. Just bought some last week here in CA without a problem.
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Old 09-08-2019, 10:27 PM   #18
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Default Re: Marvel's Mystery Oil

A good part of the population of California came from somewhere else....would be nice if more swore not to come here.....
And I have never heard of MMO being banned here....not sure where that got started!
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Old 09-08-2019, 11:18 PM   #19
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MMO makes the garage smell good when you use it in your air tools.
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Old 09-09-2019, 07:59 AM   #20
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Default Re: Marvel's Mystery Oil

And if it smells good it has to be good..hell that stuff looks good too,don't know if you want to dump a few glugs in every tank fulla gas however.

How about Nancy's nephew Gavin running in 2024 for Trumps job? Californicate the whole nation..
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Old 09-09-2019, 12:45 PM   #21
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4 ounces of MMO to 10 gallons of gas is what I have heard recommended. That is a 4 : 1280 ratio . Not much pollution there.
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Old 09-09-2019, 12:54 PM   #22
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Default Re: Marvel's Mystery Oil

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I live in the peoples republic,and I can buy mmo by the gallon if if I desire..or just mix mineral spirits and ATF,like they do.
Hmm, Marvel Mystery Oil has been around since at least the early '20's but ATF only since about 1950. How was MMO made before ATF came out?

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Old 09-09-2019, 01:02 PM   #23
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Gee you got me there..hey,how who cares,use it by the gallon..that better? A 4.2 to one gasoline L head engine with a manual advanced distributor provides enough of it's own 'upper cylinder lubrication' without the need for additives.you would be as well served by mixing ATF and solvent..

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Old 09-09-2019, 02:17 PM   #24
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Default Re: Marvel's Mystery Oil

Thank you for the many additions! I understand that MMO is not dangerous. Right?
I also understand that California is loved, but not by anyone. In Germany, the state of California is regarded as a paradise for the sunshine and white strands. -


At my engine the first and second cylinders pull some oil because the cylinder liner has rust voids. With MMO, the combustion residues have become very soft and are gradually removed during an exploratory drive. The engine innards become visibly cleaner.
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Old 09-09-2019, 02:28 PM   #25
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Default Re: Marvel's Mystery Oil

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Originally Posted by Werner View Post
Good evening, I use with visible success (combustion residues dissolve softly) Marvel's Mysterys Oil. Now I've heard that this fuel additive in California is not allowed due to health concerns (bad cancer ingredients?).

I think that's a rumor?
MMO is great stuff.
Southern California is too crowded... They have to do everything they can to reduce harmful emissions. Too bad they scraped their once great electric trolley system.
Did you know THAT at one time California had the largest electric trolley system in the usa.

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Old 09-09-2019, 03:00 PM   #26
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Gasoline has been linked to cancer as well.
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Old 09-09-2019, 04:04 PM   #27
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Now that I can type with both hands I have a MMO story for you guys.

In the early 80's Dad's friend moved to a farm and a 1941 John Deere Model A (no relation) tractor was sitting in a field across the fence. It had been sitting uncovered long enough the exhaust pipe had rusted at the manifold, and the air breather had also rusted at the bottom. The hand crank motor was locked up tight.

Dad pulled the plugs and poured them full of MMO, then replaced the plugs. For the next year or so every time we went to visit his friend we would pull the plugs and fill the cylinders with MMO and rock the bull wheel back and forth.

One January, Dad, my older brother, and I were riding in Dads '58 Ford and we went past the tractor. He stopped and they both got out to check the motor. Dad went on the right side and pulled the plug, peering into the cylinder to see how much oil was left. At the same time my brother was rocking the flywheel/handcrank back and forth trying to break it free. Just as Dad looked into the hole the pistons broke free and rust,gunk, and MMO soaked my Dad right in the face and beard!!

Dad was a combination of mad and pleased the motor had broke free. He found a rag in the '58 and wiped off best he could, but he smelled like a machine shop all the way back home.

The next day he tracked down the owner of the A and bought it. We all figured it would need a ring job, and it took some work to get it running, but it didn't burn much oil and the plugs NEVER fouled out, in spite of using it hard. We never had to open up the old Popping Johnny, and the rings held up fine.

In the early 2000's Dad sold it to his neighbor, who later passed and left it to his son. The son restored it, but told me he never took the head off the motor, and still cultivates his fields every spring with it. I want to go visit when he's using it just to sit behind the wheel once more.
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Old 09-09-2019, 04:09 PM   #28
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Califormia is the worst.
Did you know THAT at one time California has the largest electric trolley system in the usa. Then political corruption closed it down and the freeways were born.
Now people can't breath. I lived there for 5 years and during the summer months the smoke was so bad it looked like there was a forest fire.
I would rather live in Zimbabwe than California.
I don't care if you bash California from Zimbabwe, as long as you don't move here. So go ahead, maybe you'll convince a few people not to move here or some more people to move away. Don't know when you lived here but I'm looking at clear blue skies right now.

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Old 09-09-2019, 04:27 PM   #29
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Default Re: Marvel's Mystery Oil

Marvel Mystery Oil.

It was in 1982 I purchased an Airtractor powered by a Pratt and Whitney R1340 engine. My previous aeroplane was a Piper with a 6 cylinder Lycoming engine which burnt 65 litres of fuel per hour, or approximate. Now this big new aeroplane with a big fuel gulping engine burned double and I found this a little frightening so I ferried and worked at low power settings. Well oil consumption didn’t settle and I worried about that too.
Well the Australian Airtractor dealer sent a principle from the engine overhauler speak to me. The overhaullers were Aeroengines of L.A. and Vern Truman was the rep and he was also a part owner of the business. Mr Truman was also a gentleman of the highest class. He quickly determined the cylinders had glazed and recommended Marvel Mystery Oil. I just couldn’t understand what Mr Truman was saying because of his broad speech accent. Marrrvimisttrryall. At my request he wrote the name of the product and I understood. Now his instructions on how to use MMO was simple and made sense to me.


At the end of the day remove the aluminium tube to the manifold pressure gauge, idle the engine at 700 rpm and through the disconnected line suck up a quart (I think) of MMO. Turn engine off with the key and not the fuel shut off which is normal practice. 700 rpm so as the supercharger would blow it to all cylinders and the slowly running engine would not burn all the oil. The next morning do a normal takeoff and the carbon and other unwanted deposits would blow out the exhaust. Yes it did work. Another old time operator said he was recommissioning an old engine and he filled each cylinder with MMO , one at atime, replace the spark plug and pulled the engine through by hand thus ensuring the MMO was pushed through the piston rings. Leave for a few days, crank and run then do an oil change.
I had not considered using MMO in my A Models but will start now. I have a sticky valve which MMO has a good chance of freeing up.
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Old 09-09-2019, 05:53 PM   #30
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I don't care if you bash California from Zimbabwe, as long as you don't move here. So go ahead, maybe you'll convince a few people not to move here or some more people to move away. Don't know when you lived here but I'm looking at clear blue skies right now.

David Serrano
California definitely has blue skies and cleaner air again. All you have to do is watch an episode of Adam-12 filmed in 1970 and look at the difference today. Back then the sky was all kinda brown and hazy You didn't see any blue.

When I crank up my '69 Mustang the stink about drives you out of the garage. And it is perfectly tuned and all rebuilt. I haven't had a newer car in over 20 years do that. I hate to admit but unleaded fuel and a number of things the Fed made the car makers do, did work.

Calif. is a bit too crowded for me and they have problems like a lot of states do today. The last time I was there I had to laugh at a guy's bumper sticker that read 'Thank you for leaving Orange County. Please take someone with you'
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Old 09-09-2019, 11:32 PM   #31
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Default Re: Marvel's Mystery Oil

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Gasoline has been linked to cancer as well.

Life has been linked to cancer!
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Old 09-10-2019, 02:59 PM   #32
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Life has been linked to cancer!
Coca-Cola could well be an even bigger threat to society. Much bigger than MMO.
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Old 09-10-2019, 03:33 PM   #33
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Default Marvel's Mystery Oil

I like “sea foam” better, you can get it spray or bottle. From sunny Orange County!


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Old 09-10-2019, 03:53 PM   #34
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have used mmo in my roadster for 33000 plus miles, eng is still quiet and peppy. someone asked me how did I know it did any good. I replied, "if nothing else it makes me feel better"
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Old 09-10-2019, 09:50 PM   #35
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Default Re: Marvel's Mystery Oil

I like to enjoy my MMO by the quart
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Old 09-10-2019, 11:23 PM   #36
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Default Re: Marvel's Mystery Oil

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I like “sea foam” better, you can get it spray or bottle. From sunny Orange County!

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I have been using Sea Foam in my Town Sedan for quite some time, mainly because it sometimes sits for a couple of weeks. Sea Foam claims to stabilize and control moisture in the fuel, among other things. I mix 1oz / gallon.

A couple of months ago the gas gauge in my 2006 F-150 started sticking at ¼ full. I added a can (16oz) of Sea Foam to the next tank and after some miles it swung up to full. So I would surmise that the Sea Foam did do something!!
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Old 09-12-2019, 09:37 AM   #37
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Default Re: Marvel's Mystery Oil

WOW! What's this thread about? MMO or Californicate? Personally, I love both of them. I like the story of the tractor because I had a similar story, only about a Allis-Chalmers 1938 mod B. Great little machine! It was stuck and MMO freed it up. Cali? Now that another story. My daughter used to live in Laguna Hills, houses on Postage stamp sized lots that cost too much. Too much Spanish spoken! Traffic on the 5, the 110, the 101, etc. Too many people everywhere! YIIIIKEES But the worst is too many liberal politicians. Too many taxes! Too many "Do gooders" Too many anti pollution laws Am I an old angry white guy? You bet! Because as goes California, so goes the nation and that means the insanity is coming here next!
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Old 09-12-2019, 09:45 AM   #38
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Default Re: Marvel's Mystery Oil

Does anyone else just like how MMO smells? I like seafoam too but it doesn't have that nice wintergreen aroma
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Old 09-12-2019, 09:58 AM   #39
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Does anyone else just like how MMO smells? I like seafoam too but it doesn't have that nice wintergreen aroma

Makes a refreshing body cologne
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Old 09-12-2019, 10:13 AM   #40
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Does anyone else just like how MMO smells? I like seafoam too but it doesn't have that nice wintergreen aroma
It reminds me of the little red plastic capsules of electric train smoke I used in my American Flyer.
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Old 09-12-2019, 10:44 AM   #41
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Does anyone else just like how MMO smells? I like seafoam too but it doesn't have that nice wintergreen aroma
See post #19
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Old 09-12-2019, 10:58 AM   #42
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Default Re: Marvel's Mystery Oil

Some interesting facts I saw on the net about MMO.

After World War I, the Marvel Carburetor Company (Marvel-Schebler Carburetors since 1928) produced carburetors for automobiles and aircraft. Some of these encountered problems with clogged jets, prompting Burt Pierce to formulate a blend of chemicals and petroleum to clean and maintain them. Marvel claims the oil creates a top ring seal producing higher compression, preventing blow-by on power strokes, resulting in more power. Supporting evidence is not provided.

The Marvel Oil Company was initially based in Chicago, moved to New York in 1941 and was purchased by Turtle Wax Inc. in 1999, returning to Chicago.

According to the company, the name Mystery Oil comes from Pierce's answer to the question, "what kind of oil is this?" to which Pierce would respond, "It's a mystery!"
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Old 09-12-2019, 11:13 AM   #43
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Default Re: Marvel's Mystery Oil

I use MMO and it does work. Un-stuck a valve in our '36 Ford Flathead from today's dry gasolines. Dump a pint in the Model A doesn't hurt a thing.

Another better cleaner/stabilizer, better than SeaFoam (which I too used for years) is Gumout's Fuel Stabilizer with PEA. Lucas puts one out too.

The nitrogen cleaner in those products really clean carbon deposits in your engine. You get the same type of cleaner in Shell V-Power Nitro gasolines and also in Chevron's Techron. Run a few tank fulls of that thru your car and see the difference.

The Ford dealerships will do a nitro cleaning on the new cars when they reach 100K miles to keep things clean on the top end, mostly as a result of owners using stuff like the cheapo Pilot-Love's-Speedway crapo gasoline trying to save a buck They have the fewest detergents in their gasoline to save a penny or two at the pump and lure you in.
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Old 09-12-2019, 11:23 AM   #44
30 Closed Cab PU
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Default Re: Marvel's Mystery Oil

My perception of the 2 products.


Seafoam - Mostly a cleaner/thinner, analogy would be paint thinner with oil based paints.


MMO - has both cleaners and light weight lubricants.


Correct?
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Old 09-12-2019, 11:50 AM   #45
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Default Re: Marvel's Mystery Oil

Here is what is in Marvel Mystery Oil

https://images.homedepot-static.com/...6f582de009.pdf

Distillates, petroleum, hydrotreated heavy naphthenic

Stoddard solvent

Tricresyl phosphate

o-Dichlorobenzene

p-Dichlorobenzene

Last edited by GPierce; 09-12-2019 at 11:58 AM.
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Old 09-12-2019, 12:02 PM   #46
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Default Re: Marvel's Mystery Oil

Quote:
Originally Posted by Y-Blockhead View Post
See post #19

I am definitely going to start using it in my air tools
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Old 09-13-2019, 12:28 PM   #47
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Default Re: Marvel's Mystery Oil

Originally Posted by History
I absolutely love California, it is a beautiful place where you could snow ski in the morning and surf in the afternoon. The place is on my mind all the time, seriously. I love the NC mountains but I hate and I do mean HATE the humidity here. I want to live in California so bad but the people who have control of the state make sure I will not anytime soon.

I agree, born and raised here. Smog is much better now than in the 50's, in spite of many, many more people here. However, I'm not happy with CA politicians! But then Moreno Valley is many miles from here, about 50!
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Old 09-13-2019, 12:54 PM   #48
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Default Re: Marvel's Mystery Oil

Back to the topic:

Inhalte
Quote:
o-Dichlorobenzene

p-Dichlorobenzene
... may not be sold freely in Germany, because they are classified as carcinogenic.
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Old 09-14-2019, 10:35 AM   #49
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Default Re: Marvel's Mystery Oil

Quote:
Originally Posted by TerryH View Post
A good part of the population of California came from somewhere else....would be nice if more swore not to come here.....
And I have never heard of MMO being banned here....not sure where that got started!
It would be even nicer if California people would stay there and not move to our states
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Old 09-14-2019, 10:46 AM   #50
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Default Re: Marvel's Mystery Oil

Crude oil is refined by using a cracking tower,a crude way to refine crude is to heat it,the lighter distillates rise to the top,the heavier to the bottom.



Naptha and its derivatives are at the top of the crack,the lightest compounds in crude..it has a high solvent capacity,basically it cleans really good,but is very aromatic,means it needs to be stabilized with additives to keep it from evaporating and to reduce its flammability. there are no 'wizards' in it just sound chemistry.
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Old 09-15-2019, 01:17 AM   #51
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Default Re: Marvel's Mystery Oil

You may be reacting to a warning, as a result of California Proposition 65, which will inform you that Marvel Mystery Oil contains chemicals which may be, in some way harmful. The correct interpretation of this warning is that you should not pour Marvel Mystery Oil on your morning scrambled eggs, or use it to clean your child's baby crib. If you only apply it to your Model A, I expect your health will be perfectly fine.

P.S.:
- Please do not drink battery acid
- Please do not use gasoline as a coffee creamer
- Please do not use lead as a toothpaste supplement

Love, Your Nanny State
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Old 09-15-2019, 09:13 AM   #52
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Default Re: Marvel's Mystery Oil

Quote:
Originally Posted by GPierce View Post
Here is what is in Marvel Mystery Oil

https://images.homedepot-static.com/...6f582de009.pdf

Distillates, petroleum, hydrotreated heavy naphthenic

Stoddard solvent

Tricresyl phosphate

o-Dichlorobenzene

p-Dichlorobenzene

Unfair to list this way! This implies equal parts of each, not the overwhelming amounts of distillates and solvents, and minute amounts of the others. You need to specify percentages, and the last three are down in the .1% range, while distillates and solvents are in the 99.9% range.

Ford, GM, Chrysler, et al don't recommend this stuff with modern oils and fuels.

Personally, I've got better stuff to spend my few $$ on, but I doubt using it in moderate amounts hurts anything.
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Old 09-15-2019, 10:04 AM   #53
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Default Re: Marvel's Mystery Oil

Quote:
Originally Posted by apbright View Post
You may be reacting to a warning, as a result of California Proposition 65, which will inform you that Marvel Mystery Oil contains chemicals which may be, in some way harmful. The correct interpretation of this warning is that you should not pour Marvel Mystery Oil on your morning scrambled eggs, or use it to clean your child's baby crib. If you only apply it to your Model A, I expect your health will be perfectly fine.

P.S.:
- Please do not drink battery acid
- Please do not use gasoline as a coffee creamer
- Please do not use lead as a toothpaste supplement

Love, Your Nanny State
You cant imagine my shear joy at finding a few quarts of acrylic enamel paint in the parts warehouse at work..when I asked about it they said "we cant sell it over the counter,but we will sell it to you at cost"..I'm going to paint my car right here in the peoples republic,squirting compounds known to the state of california to potentially harm .000001% of those who come in contact with it..gonna dance like a savage while I do it..
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