Marvel Mystery Oil

[Herm]

A Harley mechanic recently told me he puts some Marvel Mystery Oil in his gas tank at every fill up. He has the same bike as I do-1988 FLHS Electra Glide. He said this protects the bike against the reformulated higher octane ethanol-added gasoline we get in the Milwaukee area. Has anyone had good or bad experience with this practice?

[GrayRider]

Been using it in a lot of different applications for nearly 30 years. I don't add it to my gas that often though.

[Lady Godiva]

We use the stuff in the bikes and cars, oil and gas. Heard good things about it from an ACTUAL ROCKET SCIENTIST on the VTF!

[swmnkdinthervr]

I've used it in all manner of infernal combustion engines in the oil and gas both...and now use it to improve mileage and pump lubrication in my Cummins diesel...good for whatever ails ya! Sure this stuff ain't snake oil???

[TalonChief]

Originally Posted by swmnkdinthervr

Sure this stuff ain't snake oil???

I looked up the MSDS once and it said the mystery is Stoddard solvent.

[dynageno]

use a capful with every other fill up on my bike and two capfuls in the shovel!

[Flatline]

Originally Posted by Snowdundr

I looked up the MSDS once and it said the mystery is Stoddard solvent.

Marvel Myster Oil is a solvent and had it's place in the fifties or sixties. It basically strips out sludge and deposits out and cleans the engines. Without getting into detail, it's unneeded on the more efficient engine designs of the past 20 years. Other simular brands/type use kerosene, naphthalene, xylene, acetone and isopropanol.

To each their own. If it works for you or believe it works for you, then who I'm I to say.
Flatline

[route66paul]

Don't Harley engines have an old design? Wouldn't that mean that it has old problems and that they need an old solution?

[Flatline]

Originally Posted by route66paul

Don't Harley engines have an old design? Wouldn't that mean that it has old problems and that they need an old solution?

Crap! You got me on that one! I don't even have a good come back on that one! Ok, I would use Marvel in all three holes inlcuding the gas tank. Who knows, you could have the cleanest running Harley around.
Flatline

[2006FLSTNI]

Hi I am an Aircraft Technician Jets mostly Transport Category BIG ONES

MMO (Marvel Mystery Oil) Is GREAT Stuff -- As a matter of fact It is one of the only products produced for the Automotive Industry that got Accepted and Approved by the F.A.A. and NTSB to be used in Reciprocating Air Cooled Aircraft Engines. ( In Leamans Terms Piston Engines) It is also sold under a different name By Ford Motor Company (FOMOCO) as Top Cylinder Cleaner.

What this stuff actually does is burns the carbon off the Combustion Chamber, Valve Train. Pistons, and is a wonderful Hyd. Lifter Cleaner. It will also CLEAN YOUR INJECTOR NOZZLES. It also cleans the oil passages in your engine if used in the crankcase. Back in the days of carburated car engines I would pour a whole quart down the throat of an idleing car -- SMOK LIKE HELL but it would actually quiet the valve train and improve performance after 25 miles of driveing after the smoke cleared of course. I would alos put a Quart in the Gas Tank and A Quart in the crankcase. IF THERE WAS ANYTHING THAT CAME CLOSE TO "TUNE UP IN A CAN" This is it. When added to the crankcase you should change your oil and filter 1000 miles later. You dont want the loose carbon, and sludge to be in there too long.

I highly recommend this stuff, GREAT PRODUCT I have been useing it for 20 or so years and when ever i get that this engine isn't running like it should and the Tune Up didn't help -- I break out the MMO and after 25 to 50 Miles it just seem to pur like NEW

Peace
Dan

[2006FLSTNI]

Originally Posted by Flatline

Marvel Myster Oil is a solvent and had it's place in the fifties or sixties. It basically strips out sludge and deposits out and cleans the engines. Without getting into detail, it's unneeded on the more efficient engine designs of the past 20 years. Other simular brands/type use kerosene, naphthalene, xylene, acetone and isopropanol.

To each their own. If it works for you or believe it works for you, then who I'm I to say.
Flatline

You Are WRONG -- Solvent?? Are you NUTS!!! Dude I would love to see you put NAPTHA or Acetone in your engine -- Can I be there when you do -- I love to see ENGINES BLOW UP IN A FIREY MESS Pistons flying, Heads 10 feet in the air. Hell I would pay you 20 buck to put it on thats incredible

It BURNS THE CARBON OFF THE PISTONS VALVES AND COMBUSTION CHAMBER. Among other things -- See Post Above.

Actually, No one has been able to reproduce this stuff. It has YES Distilled KEROSENE/MINERAL SPIRITS and some form of DISTILLED NAPTHA. So does every other refined Petrolium product known to man. No other ingredients are released. It is a PETROLIUM PRODUCT NOT A SOLVENT and it does wonders to Sick running engines by BURNING THE CARBON DEPOSITS OFF THEM.

Peace
Dan

[SYCLONE]

Sounds great!....So for reduced warranty expense...why dont GM , Ford,Honda,Toyota,Mercedes,Porsche...etc.. know about this stuff. ?

Ya. those Mercedes and Porsche engineers are mostly inept anyway.

My neighbor spread newspapers all over his lawn..I asked him what the hell he was doing! Said.."it keeps the elephants away" I said there isnt one for thousands of miles!!! he said "see"

[2006FLSTNI]

If you read my post FORD DOES and Sell it under "TOP CYLINDER CLEANER"

[Mtclassic]

okay for those who use MMO has anyone actually tasted it to see if it tastes as good as it smells....I wish Homer Simpson were my neighbor he would taste it. Last year my Father in-law got ahold of a 1974 ford van with something like 13,000 miles. It sat forever without being run. the valves were sticking and clattering and I dumped a bottle of mmo in the oil and in the gas and after a short period it sounded like normal, but the carb began leaking like a sieve..

[TalonChief]

Originally Posted by 2006FLSTNI

You Are WRONG -- Solvent??

Dan

Seriously, as I posted up above (#5) I looked up the MSDS and the main ingredient is Stoddard solvent.