My first aircraft mechanic told me to use Marvel Oil in the gas.
I have owned about six or seven antique and exotic aircraft since 1988. My first aircraft mechanic told me to use Marvel Oil in the gas and the airplane would just plain run better and have better lubrication. I used it on all my airplane engines, until one day in 1998 I bought an antique plane in Michigan. The owner said "No, don't use any of that stuff in this engine!" I didn't want to change anything during a 2000 mile ferry flight back home, so it was the first time I ever didn't use Marvel Oil. Sure enough, a couple of days later flying towards home in extreme high temperatures through Texas, that engine stuck an exhaust valve because of carbon buildup and poor valve stem lubrication.
I lost a whole day waiting around for a mechanic to free up the valve. I asked this mechanic how they keep their planes running in the 115 degree Texas heat, and he said to me that they put a little Marvel Oil in the gas! I could have strangled that damn guy in Michigan... and it's the last time I ever failed to run Marvel Oil in an airplane engine. Some things just work.
by Bill B.
My father has always used it and I have been using it since around 1986.
My grandfather used MMO in his two 1957 Chevy pickups that he drove up until he passed away in 1996. My father has always used it and I have been using it since around 1986. Recently I have been encouraging my grown children (twin girls) to use it as a preventative maintenance measure. I have tow trucks and they get tons of abuse. One of my trucks is a 2000 Dodge 3500 V-10 gas with 350,000 miles on the original engine and transmission. I am 43 years old and have never worn out an engine. I also use it in my lawnmower, snowblower and motorcycles.
It’s truly a great product that has withstood the test of time.
I became aware of MMO during WW2. My Dad was a tool and die maker for Curtis Wright in Caldwell, NJ all during the war. and knew about MMO at the plant. I remember "Helping" change the oil in our 41 Chevy and Dad holding me while I poured the bright red oil from the red and black metal can. He used it in his 41,50,57,61 Chevys and I just put a quart in my Saab to keep the sludge under control. It’s truly a great product that has withstood the test of time.
by Joseph M.
I use it and I also tell everyone about it.
Many yr's ago an old timer, built cop car engines for the Syracuse, NY PD told me about MMO. This was probably 30-40 yr's ago. To this day I use a qt. at every oil change in every vehicle I have owned and to this day I have never had an engine component failure. No clattering after 100,000 + miles, no oil burning, just smooth running motors. This stuff is great. And as long as I can find it (Wal-Mart) I will use it. I also tell everyone about it. My father-in-law used it in plane engines during WW2. He swore by it too.
by Thomas R.
MMO is the way to go!
I was having difficulty getting the car to start on cold mornings (below 25 degrees F). This went on for a few weeks. I added MMO to the gas and after a few days the problem was gone. The car has 155,000 miles on it and is again running strong. What I thought was a big problem, had a cheap fix. MMO is the way to go!
by James C.
We've used Marvel in everything we've owned from firearms to ATV's to automobiles.
My wife and I have three cars, a '01 Jeep Wrangler, '05 Chevy Colorado & a '06 Jeep Liberty. The Wrangler has had a valve tick since new, the dealership said there was nothing they could do about it. I started putting Marvel in the crankcase & gas and the tick went away! I recently fogged the throttle body in all three vehicles with Marvel as well as putting it in the gas & oil, what a difference in performance & fuel economy. I also used it in the automatic transmissions of all three vehicles, they shift so smooth you can hardly feel them shift!
We also collect antique tractors & hit and miss engines and use MMO on those too. My Dad is also a big fan of MMO and has been using it since the early 60's, with his father using it before him. We've used Marvel in everything we've owned from firearms to ATV's to automobiles. We love your product and would love MMO stickers for our vehicles, so we could spread the word about MMO!!
by Alex & Dara
I believe in it totally and am thankful it has been available to all of us gear heads.
Wow, where do I start? I have used MMO for around 40 years now. Since I got my first car at 16. I honestly don't remember who told me about it, but I remember adding it to the gasoline and engine oil in my Triumph TR-3 and every car since in the last 40 years.
Oh, and my model airplane and car engines. I use MMO as an "after run oil" and it prevents bearings from rusting due to the hygroscopic effect of nitro methane and methanol. As well as generally preserving my model motors. I have some motors that have been stored in a plastic bag for 25+ years with MMO as a coating and they still are rust free and turn over like the day I put them away.
But to this day, after every flying session or engine tuning session I add a few drops of MMO and bump the motor over and I know it is protected. I am a retired mechanic and I used to work for the MTA in Los Angeles. When we had a diesel engine bus get sticking injectors, I would hook up a quart of MMO straight to the injector pump and those sticking injectors would clean free and the bus was back on the street in a jiffy! Marvel Mystery Oil is a super product. I believe in it totally and am thankful it has been available to all of us gear heads for so long. Best regards!
by Tom K.
This is definitely some out of this world stuff!
So I am a new-comer to the MMO product. I have raced for about 7 years doing Superbike racing. My first day after purchasing a 2006 Yamaha R1 I started immediately using MMO in the fuel. And after my first oil change switching over to MMO 1 quart with some Full synthetic oil. Got to break the clutch in! My bike has ran exceptionally well for the time owned. I took the bike to the Race tech, they were curious about the outcome of MMO and asked to break the engine all the way down.
And friends, let it be proof, after 2 years of running MMO in the fuel and Oil, the mechanics were flabbergasted. They couldn't complement about the engine so much, they were "marveled" at the fact that the engine was almost, well brand new looking. I will be due up for a valve adjustment/change. Those are done at 26,500 Miles. The mechanic decided to just go ahead and check all the valve clearances, and well, they are all still factory spec and I mean off by maybe 1mm. WooHoo! So I couldn't say it enough, but I also couldn't advertise MMO enough as well to friends, famlies, and strangers. This is definitely some out of this world stuff, and works wonders let alone in high performance motorcycles. Thanks a lot Team Marvel! Your the best!
I use MMO in my car and would recommend it to anybody.
Remember years ago when I was a little kid my grandpa always had Marvel Mystery Oil in his work shed. My brother and I eventually started sneaking some of it in our go-cart engine and we could really tell the difference in how it ran after mixing some in the gas, it ran smoother and with more power. I dont know why or how, but it did make a difference on the small motor. So now I use MMO in my car and would recommend it to anybody.
You only need one oil/gas additive in your garage and this is it!
I have owned over 100 cars, yes I said over 100, so I know allot about everything from Audi's to VW. Marvel mystery oil is a product that works...PERIOD. I use it in all my gas powered items, my trucks, my SUV and my motorcycle. We use it here in the shop in place of air tool oil in the hand tools and the air powered stationary machines. Everyone laughed when I told them this stuff works E58for everything. No one is laughing now. You only need one oil/gas additive in your garage and this is it! Great job you guys! Nice to see a product deliver what it says even after the 40 years plus that I have been using it. Thanks!
I use Marvel in everything from my boats to mowers without any engine problems.
Not a question, just some praise! I have a 94 GMC Sonoma with 418,000 plus miles that I have used marvel mystery oil in from day one. Engine still running great, still getting 23 to 25 mpg, does not burn oil; tune-ups are at every 150,000 miles and no minor or major engine work. I estimate that as a work truck, I've hauled over 400,000 lbs of cargo. Also use Marvel in everything from my boats to mowers without any engine problems. Thanks!
I have been using MMO in our tractors and trucks for about twenty years.
I am a farmer and have been using MMO in our tractors and trucks for about twenty years, principally in the diesel fuel. It keeps the fuel system including tanks, injector pump, lines and injector nozzles clean. Wear has been greatly reduced, injectors and pumps last much longer and cold weather starting is much improved A couple of our tractors aren't used in the winter, and MMO keeps the fuel in the tank a lot fresher. In the gas engines it also makes for much better idling and performance when used in the fuel. In the oil it really helps with valve noise on startup.
I use MMO in every 3rd tank now and always will.
5 years ago I purchased a 1999 Harley-Davidson FXDX with Harleys new twin cam engine. This bike was in storage a lot and was not ridden much - a average of only 900 miles a season! Needless to say it ran kinda rough, didn't start all that well sometimes, power seemed lacking. In other words the bike was full of cobwebs!! The only thing I did to the motor was clean the K&N;air Filter, and put in a new set of Harley gold spark plugs. I started using MMO at first in every other tank, after the first few hundred miles I could really tell that the carb got cleaned out, because I had to make an adjustment to the idle speed. And the motor started much better. Now after riding well over 15,000 miles this bike runs better than new, I have checked the plugs and put them right back in because they still look new - just checked the gap.
The bike starts always on the first crank - even out of 4 1/2 month winter storage!! This spring I cleaned my air filter again and checked over the carb and it is clean and shiny with no traces of rust or gum/varnish build up. I use MMO in every 3rd tank now and always will, it seems to make a difference. It certainly is a mystery what's in it and what it does!!! KEEPS MOTORS CLEAN AND RUNNING LIKE NEW. And yes, I use it in my two other cars occasionally also. And in my many small motors, which are 40 year old chain saws, lawn mowers, weed wackers, generators, snow blowers, air compressors, tiller, leave blowers/mulchers.
by tCB – thecowboy
I hope to continue using MMO for as long as I have a steering wheel in my hand.
I first learned about MMO from a boating friend almost 20 years ago and began using it in my twin-diesel trawler. Immediately, I noticed that during run up after prolonged idling, smoke was reduced by at least half. But more important, fuel efficiency in terms of miles per gallon increased by a consistent 11 percent. Since then, I have used it in four SUV's I've owned and more recently have begun to use it in all my outdoor power equipment including lawnmowers, trimmer, blower and chain saw. In the meantime I learned commercial fishermen use it in their boats down on the Gulf Coast. Also, I have heard several legendary stories about how MMO helped keep military equipment operating in the South Pacific during WW II and pilot stories about their great experiences of using MMO in their planes.
In short, this is a great product and I recommend it to everyone without any reservations whatsoever. Finally, I am very pleased the new owners of the company elected to retain the same distinctive design on the MMO containers. In fact, I have two of the older metal MMO cans on display in my office. I hope to continue using MMO for as long as I have a steering wheel in my hand. And for the sake of everyone else, I hope it's always available to them, too.
I now have nice clean green anti freeze for 1500 miles.
I have a 1969 roadrunner with 132,000 miles. I flushed the radiator about 20 times and the anti freeze gets rusty after a few drives. I tried about 5 ounces of marvel in the mix and I did 1 more flush after 100 miles. I now have nice clean green anti freeze for 1500 miles. I now add a little to my 55 caddy and 69 camaro radiators. I also add 12 ounces every other tankful to the old classics.
Thanks MMO you saved me alot of money and give me the peace of mind.
A few years ago our Cessna 172 equiped with a 6 cylinder Continental engine was pagued with stuck valves. Not something to take lightly! it was not only scary to loose a cylinder while flying but also a very expensive fix. After several trips to the mechanic and thousands of dollars later another mechanic suggested using a bottle of Marvel Mystery Oil in the fuel with every fill-up. Not only does the airplane perform much better but we haven't had a stuck valve since. Thanks MMO you saved me alot of money and give me the peace of mind that the engine won't quit.
by Big Ray
I started adding mmo at every oil change, no more valve jobs.
I was introduced to mmo as a new hire at United Airlines in 1955 (no jets yet) we poured a lot of mmo in those big pratt & whitney piston engines. It cut the smoke at engine start a lot. Have used it on my own vehicles since. I owned a 51 chevy with the then new hydraulic valve lifters I was continually having to do a valve job on it because in a short time they would gum up and stick. I started adding mmo at every oil change, no more valve jobs.
I always carried a baby bottle with me with the wonderful red oil in it.
Well, I have used MMO for 25 years as a fuel additive in my Harley Davidson motorcycles. As all the bikes I've had were meant to run on leaded gasoline, I always carried a baby bottle with me with the wonderful red oil in it, and did the math for the less-than-10-gallon fill ups. 5 gal gas = 2 oz MMO, etc. hah hah ha.. Years pass and I now have a 1999 Ford Ranger which developed a lifter tick after 150K miles. I've been pondering spending another 20K $$ on a new Ranger, and saw the beautiful MMO can on the shelf and thought..... why not? I dropped in 24 oz (3- 8 oz baby bottles) and the results was AMAZING. The lifter tick is GONE and I swear the engine is smoother than ever before. I've always used synthetics and I am at a loss for a technical explanation as to how it worked and so fast, but that's the "Mystery" about it, eh? MMO, you saved me 20 grand. I will drop the "other" fuel additive for my truck and please it with MMO each and every fill up!!!
You guys saved me a lot of money and helped me keep something I love so much.
I have no idea what the you genius's make this "mystery oil" with but you are GODS to me. I have a 98 Pontiac Trans Am. I just bought the car about 1 month ago. During this time I have changed the Spark plugs in it and that's it. The car only had 55000 miles when I bought it and had been garage kept. The only time it was driven was in the summer. Well, I changed the plugs and upgraded the fuel type to Plus. This is when my problem started. I did a diagnostic test on it and it said that there was a #7 misfire. Well, I knew the plugs were good, so I checked the plug wires and the coil pack. Both of those checked out. My last option was a fuel injector.
I knew that's what it had to be but no one else wanted to believe me. I reset the computer hoping that maybe it was a computer problem and that it would just go away. Wrong. The service engine light stayed off for one day and then it was right back on. The motor started to jump and shake again exactly like it had done before. This time I went with my gut instinct and went out to look for a fuel injector cleaner. My uncle told me about this product and said that he trusted it with his life. This had me excited because this man isn't commited to anything unless he is certain that it works. Sure enough I went up to Autozone, bought a 1 quart bottle, and then dumped half of it in my fuel tank.
It is amazing how much difference the internal engine parts show on a teardown.
My dad was a mechanic for 40 years. That means he started in the 30's working on Chevy's at the local dealership in Corsicana, Texas. I can remember distinctly the smell and the color of Marvel Mystery Oil that he used for upper cylinder lubrication and to help burn out the carbon on the valves and anything in the combustion chamber. He would pour the oil directly in the carburetor until he killed the car or whatever engine he was working on.
I thought it was cool. Well, guess what? Like father, like son. Although I don't flood the engine with the oil like he did, and I don't make my living turning wrenches anymore, I do use the oil in the gas tank and the crankcase. It is amazing how much difference the internal engine parts show on a teardown. There is very little sludge or carbon build up like you normally see, for instance in the head area. Like dad's cars, we never had a problem with a valve burning, ring sticking or engine seize.
by Armadillo Triker
THANK YOU MMO FOR SAVING THE COAST GUARD FROM BEING TOWED IN!
If published, this is my second testimonial here. But this it totally unrelated to my previous experience. I am in the Coast Guard Auxiliary. One of our officers obtained a boat from a family member which had sat for many years. After normal tune-up, etc. the boat was approved for use by Coast Guard. On its maiden voyage, (which was a safety patrol) the boat would not idle, ran rich, smoked, dyed numerous times, etc. I and crew thought we would need a tow to shore. To be a Coast Guard member, and have your Coast Guard patrol boat towed in is almost unthinkable.
On a hunch, (based on my previous experience in first testimonial), I obtained a quart of MMO and poured the entire quart into 20 gallon fuel tank of this boat. After a run up the lake at 3/4 throttle, I could smell the MMO being burned in exhaust fumes. The boat began running better and better. After an hour, it ran like a new boat. It idled perfectly at 900RPM's. It had no hesitation, and stopped missing and dying. We assume the MMO cleaned the boat's carburetor of varnish and gunk collected from boat sitting for a long time. Thank You MMO for saving the Coast Guard from being towed in!
by KELLY TOWNSEND
MMO vastly extends the life of these expensive carburetors.
I have used Marvel Mystery Oil in the fuel on my vintage 1975 Norton Commando 850 motorcycle since I bought it new in 1975. Most of the older bikes use air-valve type carburetors. They use a sliding air valve "piston" instead of a butterfly plate to regulate throttle opening. As such the air valve "piston" is subject to wear as is the bore of the carburetor that it slides in. This causes these vintage carbs to literally wear out, just like a piston in an engine cylinder. The solution is to add MMO to the fuel... about 2 ounces per 3 gallons. The MMO vastly extends the life of these expensive carburetors by virtually eliminating wear on the slides by serving as an in the fuel lubricant for the carburetors. I now have 18,000 miles on the bike and the slides and bores on the carbs are like new At the same time MMO keeps the engine valves clean and serves as a top end lube extending engine life. I also use MMO in my 350 Enfield Bullet with the same results.
Amazing product guys, I am about to start using it every fill up.
I have never seen anything like this stuff. I was in a bind for a car without a lot of cash. Long story short I bought a 98 Bonniville with over 300,000 mi on it. The dealership sold it to me for $223 because they never thought it would crank again! Having some mechanical skills I bought it thinking I could fix its issues. Before I spent the money to have it towed to my friends shop I decided to try MMO. WOW Not only did I get it to start but I have not had to turn a wrench on it yet!! That was a year ago and my $223 car runs as smooth as any new car. About every other month the valves start sticking again, I give it another shot of MMO and within five miles it smooths out like magic every time. Amazing product guys, I am about to start using it every fill up.
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