Marvel Mystery Oil

[Mallett]

Any of you guys ever add Marvel Mystery oil to your gas or oil? My grandfather was a mechanic & was a true believer in this stuff.

[Denny47]

Yep, couple of ounces every two or three fill-ups. Same for a couple of my friends. No. not in them, in their bikes. LOL

[Mallett]

Yep, couple of ounces every two or three fill-ups. Same for a couple of my friends. No. not in them, in their bikes. LOL

Think I'm gonna try adding a couple of ounces to my gurl, Denny47.

[salty1]

Yep, couple of ounces every two or three fill-ups. Same for a couple of my friends. No. not in them, in their bikes. LOL

+1, maybe every other month.

[John Schmidt]

I also put it in my cars, does a great job on keeping injectors clean.

[Grumpy]

I have used it for years, couple oz about every third or fourth tank. Keeps the wibbling pin from wearing out the wobbling hole.

Seriously, it does help clean and lube upper cyl's and valves.

[Tailgate Tommy]

At the shop we used to put it in our air tools for lubrication. I still have all my old tools and they still work great. (No not in that tool!)

[98valk]

snake oil today compared to the modern cleaners that are available.
some of the ingredients are low temp solvents which are good for the carbs, however when they hit the back of hot intake valves they solidify and reduce power and mpg. seafoam does the same thing, maybe worst and the could be the cause of some hydro locs, I posted about this a few yrs ago, due some of the ingredients don't ignite well. but who am I for attacking the religion of seafoam.

www.bobistheoilguy.com to see analysis and reports

[hubcapsc]

At the shop we used to put it in our air tools for lubrication. I still have all my old tools and they still work great. (No not in that tool!)

I have a 30 or so gallon 150 psi compressor and an impact wrench that
is supposed to be good for 350 ft/lbs of torque... all this is new to me, so
I read the manual to be sure I had properly set the impact wrench to
"full power reverse". Anywho, I have a Valkyrie pinion cup that I can't
remove from the final drive. I was telling all this to my buddy Dan, and he
said to try putting a few drops of marvel mystery oil in the ports on the
impact wrench and see what happens... 

-Mike

[john]

          " Keeps the wibbling pin from wearing out the wobbling hole. "             

[Brian]

I used MMO in the last 3 tanks and it stopped my gas leaks. I still tore into all the carbs cause I have a hard time riding knowing there is an issue. Corrosion was found at almost all the fuel rail O-rings.

[Xtracho]

The notion that MMO is snake oil is incorrect. On the vessel we are running 4 - Cat 3516B Turbo Diesels turning 1800HP @ 1600 RPM. We regularly use it every oil change with zero deposits. And our monthly oil samples, sent to the office and analyzed by an independent lab, confirm that.

I agree, however, that neither MMO or Seafoam are the end all, be all for solving problems. Like Brian said, I get twitchy when I have an issue until I'm able to get in there and see it for myself.

One source, that I trust implicitly, supports the use of MMO in the fuel tanks of older 'Wings (I have an '84) because it lightly lubes the internal carb parts and leaves a light film of lubricant on the interior walls of the fuel tank; preventing corrosion.

[gregk]

Ok I'm going to throw a brick into the works.   This is a good topic I hope more respond.  Years ago when every one had old boat gas that was mixed with oil we all used to through it in our carberated car engines and use it up. Then I got my 1st fuel injected car. I asked around & could not find anyone to tell me not to do it, so we'll say 3-4gallons of the mixture went in the gas tank and I filled the tank with fresh gas, hooked up the boat an took off fishin. I made it about 30 miles and had to go back home on 3 lungs. I had plugged 3 injecters. dont comment on this its only a tidbit I'm throwing in lets stay on the Mistery oil.   I had a 83 Venture for 14 years that was carberated and I used to use the marvel mistery oil in the gas but I dont know if it was coincidence but I started having the diaphrams in the carberator seperate. I dont know for sure what our diaphrams look like but on the venture they were about 2" square with a cup attached and a plastic barrel that looked like the old black 35mm film canisters attached, and then a 1 1/2" needle was planted in the end of that. I think 3 seperated in a week between the cup and the barrel causing the needle valve to just plug the hole. at $110 each I found a way to cement the the barrel to the cup and then I quit using the mistery oil and the problem went away. I still have the oil about 2 qts. I will stay with the seafom once a year.

[JaysGone]

I drink the stuff............................
Ive been using MMO and Techron for ever.
Every 5 gallon of so tank gets a premix mix of 4ozs.
I take a gallon jug of MMO and add a large bottle of Techron that's meant to treat 20 gallons of gasoline.
Mix the 2 together then put it in used quart bottles.
4 ozs of the stuff goes in every tank full of every bike Ive owned since almost forever.
Has it helped???
Hasn't hurt anything............ but my wallet a little and never have had any failures so far.

Me.......it hasn't worked on as well.
Tasted terrible.

[saddlesore]

 I don't know if you can apply this or not but I put MMO in the kerosene I use for a heater in the garage.
 The wick seemed to get clogged up and I only got a quarter of the flame as before.
 I drained the tank and put fresh kerosene in, cleaned the wick and all is well.
 I guess stale kerosene is better than treated kerosene.

[Thulsa Doom]

I often add a 'glug' from the bottle when I fill up.

[roadhamr]

there are a number of good additives out there for your fuel that add upper cylinder lubrication and clean fuel systems and combustion chambers. my favorite is the Lucas Ethanol Safeguard Product. it helps to deal with some of the nasty side effects of having ethanol in our fuel. i try to use premium from Shell as they advertise no ethanol content but it isnt always available. Lucas Oil's Ethanols Safeguard product helps remove water( ethanol is hydroscopic! ), conditiomn gaskets, seals and hoses( ethanol is corrosive and eats away at these items! ), cleans and lubricates fuel systems and combustion chambers, and will stabilize ethanol based fule for a full year. add rate is 1 oz per gallon. no worries about over treating either. works for me.

[Farther]

I don't use anything that has "mystery" or "marvel" in the name.  This stuff has been around for decades.  I think there would be better stuff on the market by now.   

[pancho]

THink about it,,, MMO was the "hot additive" nearly a half century ago!!! Now we are riding machines that we expect to take us hundreds of thousands of miles.... things change,, there are probably better choices out there.

[pancho]

I mean, there are too many unknowns here for me... The formulations of the rubber and plastic pieces that the fuel comes in contact with,, float valves,, petcock pieces.. etc,  etc, and the ingredients in MMO... and the interactions between them...  Im just sayin 

[salty1]

I use fuel additives frequently including MMO. IMO if your going to use these additives be smart about it. If your using more than the recommended dosage be sure you can ride far enough to completely pass it through the bike. For example, every other month or so I'll put a full can of Seafoam, Techron or Chemtool in a full tank and ride 140 to 150 miles then fill it up again and ride at least another 10 miles. This easy for me on full day rides. Otherwise if your using manufacturer recommended dosages, I think your safe. For example, if you fill with Cheveron fuel it supposedly has nearly the same concentration of Techron as a mixture you create using the Techron dosage recommended on the bottle. I like Cheveron gas for obvious reasons. FWIW