Marvel Mystery Oil...
Just wanted to inform the community of an awesome product that was invented in 1923. This product was originally used to keep airplane engine internals clean during WW2. Obviously, Hitler was on the short list of skeptics but by 1945 he was assured of the superiority of Marvel Mystery Oil as many of his own planes which didn't use MMO went down in flames
This product has has had a steady following in the automotive community since it's inception. It's often used in the engine for cleaning carbon deposits and used in the gas for a smoother running engine. Many hot rodders through the years have used this product with great satisfaction. And remember, in this most festive time of year, MMO is available in a red colored bottle and has the smell of fresh wintermint. Make your favorite gearhead smile this Christmas with a 32 oz bottle of MMO under the tree, larger sizes are available for MMO addicts, MMO is available at fine retailers everywhere.
This product has has had a steady following in the automotive community since it's inception. It's often used in the engine for cleaning carbon deposits and used in the gas for a smoother running engine. Many hot rodders through the years have used this product with great satisfaction. And remember, in this most festive time of year, MMO is available in a red colored bottle and has the smell of fresh wintermint. Make your favorite gearhead smile this Christmas with a 32 oz bottle of MMO under the tree, larger sizes are available for MMO addicts, MMO is available at fine retailers everywhere.
Just wanted to inform the community of an awesome product that was invented in 1923. This product was originally used to keep airplane engine internals clean during WW2. Obviously, Hitler was on the short list of skeptics but by 1945 he was assured of the superiority of Marvel Mystery Oil as many of his own planes which didn't use MMO went down in flames
This product has has had a steady following in the automotive community since it's inception. It's often used in the engine for cleaning carbon deposits and used in the gas for a smoother running engine. Many hot rodders through the years have used this product with great satisfaction. And remember, in this most festive time of year, MMO is available in a red colored bottle and has the smell of fresh wintermint. Make your favorite gearhead smile this Christmas with a 32 oz bottle of MMO under the tree, larger sizes are available for MMO addicts, MMO is available at fine retailers everywhere.
This product has has had a steady following in the automotive community since it's inception. It's often used in the engine for cleaning carbon deposits and used in the gas for a smoother running engine. Many hot rodders through the years have used this product with great satisfaction. And remember, in this most festive time of year, MMO is available in a red colored bottle and has the smell of fresh wintermint. Make your favorite gearhead smile this Christmas with a 32 oz bottle of MMO under the tree, larger sizes are available for MMO addicts, MMO is available at fine retailers everywhere.



Joined: Oct 2007
Posts: 6,029
Total Cats: 304
From: The coal ridden hills of Pennsylvania
I used that stuff on a lot of gun parts in the past. It is good stuff. I thought about filling my chra with it on my turbo and plugging the holes shut. No oil feed/ return needed with that stuff.
Joined: Oct 2011
Posts: 5,718
Total Cats: 830
From: Detroit (the part with no rules or laws)
Yeah i dump it down the carburetor of my boat when it gets winterized, just before i cut the engine off. Seems to help tremendously in the spring when i first start it up again. I'm sure it does other "marvelous" things as well.
Joined: Oct 2011
Posts: 5,718
Total Cats: 830
From: Detroit (the part with no rules or laws)
Actually, our tractor that sat out on the back porch all winter wouldn't start. After dumping some MMO in the tank it fired right up. Of course, that doesn't prove anything since there wasn't a technical paper written about it and authored by 3 different PHD's and verified by 4 different labs to cross check the accuracy.








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