Watch this before buying Marvel mystery oil/How to use marvel mystery oil in engine oil/Engine flush

I own a turbocharged 3.5l Ecobost F150. I have used MMO at about 500 miles prior to oil change, since new. All oil changes are performed within a reasonable timeframe to a 3000 mile oil change interval. My truck has 69300 miles on it. I am getting an oil change today. About 700 miles ago, I put in one pint of MMO and checked the oil prior to install. It had not consumed or leaked any oil. It was completely full. I take diligent care of the oil in this vehicle because it is turbocharged and I understand the hazard of neglect.

ATF works great and is cheaper. Can be left in crankcase also.

You didnt use it right.

Looks like it did nothing

You have a direct injected engine and you put it in the fuel that helps lubricate the valves it'll bring back your back your mpg

Im not sure how much VARNISH it will remove, but I've seen it loosen up sludge so it will drain out of the drain plug.

You can put marvel mystery oil in the you can put marvel mystery oil in your power steering pump what marvel mystery oil in your gas and you can put marvel in your automatic transmission that's because marvel miserable is automatic transmission oil

Marvel mystery oil is ATF automatic transmission fluid

It will dissolve carbon from ring lands, reducing oil consumption.

Use diesel for engine flush

Back when it was invented, all oils were non detergent. The oils had parifen wax in them. The wax made oil stick to parts. This made a sludge that was very soft and very thick. It was low in carbon. Try 5000 kilometers next time. For the new sludge with minerals and high carbon I fill the engine with diesel and let it idle for an hour or 2. I watch the oil pressure, adding engine oil till the oil pressure is over 10 lbs.
After this it will be much clearer. Change the filter again. Use high detergent oil. In 1000 k it will be dirty again, from the loose sediments. If so change it 1 more time .

good job,,,,,I think seafoam would work better.....

Why didnt he change the filter on the first oil change?
I think the filter should be replaced on every oil change.
Also run the MMO for the full oil change interval, you get better results.

Berrymans B12 👍👍👍

Weren't you also supposed to also add more Mmo?

If you need to clean and flush the motor use Berryman B12, this will do what your looking for. I use MMO but only in the gas to lubricate the pump, injectors and valves. And this is done only after I use Berryman B12 in the gas to flush and clean the system. So Berryman B12 to flush and clean ( full tank of gas) then MMO to lubricate the system to keep it running smooth. In the oil I only add Bestline to keep the bearings micro polished and one step above just oil by itself.

That wasn't "Sludge", that was varnish.

BG products is better. They have a engine flush product.

In my opinion: MMO is a cleansing oil additive that only recently was approved by their marketing to use with synthetic motor oils. It has the tendency to wash out viscosity & remove the hydrostatic cling effect. It's not meant for extended oil intravels & does a fine job cleaning up salvaged used engines that sat around awhile. Not recommended for constant use in the oil.

It also is a good air tool oil & can unstick ball joints & tie rod spindles when soaked for a day or two.

It has a definite place in auto & agricultural mechanics, but you have to use it with conventional oils & change the oil sooner then recommend. It does a good job as a fuel additive when used all the time. I wonder how well MMO does in the value train of GDI non turbo engines with the intake valve gunk. Do not use in the oil with any turbo engine. Turbos use special oil otherwise the turbo WILL lock up permanently.

MMO is well known to free sticking hydraulic lifters in junk yard engines & old farm equipment.

It will devarnish cylinders walls, piston rings, valve stems & valves when used as a limited oil additive. Not recommended for 0w-20 or 5w-20 oils. Just add a half quart/liter of 5w-30 or 10w-30 to your oil change before adding a half of a quart/liter of MMO if your vehicle specifics call for SAE 20 oils. That way you'll have adequate viscosity being MMO would be SAE 5 in viscosity & will reduce your overall viscosity. It makes a great top off conventional oil filler during the run time of the service interval to, but not to exceed one quart/liter either in initial fill or progressive.

I have at least 25 years of experience to know. Your choice.

You may find it works better if you use a new oil filter to remove all the contaminants in the oil. All you did was to add clean oil with dirty oil.

I would say what you have there is not what I would call sludge! It's just a normal coating of varnish. That looks more like an engine that has been properly maintained and has miles on it? Above 100k miles I assume. My 99 Camry engine has that same type of varnish to it at 357k miles! I bought the car with 14k miles on it when it was a year old. I never let the oil get any darker then lite brownish. Never had black oil in it and there is no " sludge" on the cylinder head under the valve cover. Just lite brownish varnish and my compression is still at normal spec and equal across all 4 cylinders at 357k miles and runs quiet and great!
Thing I did last 2 years that made a world of difference in many ways including power. Replaced fuel pump (was replaced once before), fuel filter (was replaced once before), and remanufactured fuel injectors (never replaced or cleaned before). Wow did I get much more power and throttle response! Night and day difference, the car still ran fine but was feeling slower and slower as time went by and I was hearing pinging sometimes (pre-detonation in the cylinders, or knock during acceleration especially with the AC on too). All that went away with the fuel system parts replacement and feels like double the HP I had before doing that work myself. (Fuel injector replacement was no fun because of where they are and you can't see much in there from above! More by feeling yourself around and using a mechanics mirror. Be prepared for the connector shells going to the injectors to begin to break because of age and heat. I ended up replacing all 4 of mine! Buy new ones and be ready to cut the wires. Splice new ones in, solder, heat shrink, DO IT RIGHT! Luckily for me was second nature as an electronics professional...

Regarding oil changes: I sometimes add a little Marvel Mystery oil to my oil when I change the oil, or just prior to an oil change to keep from building any sludge. Every year or two I do a double oil change on my Honda. I add motor flush to the oil & let idle for 5 minutes, then drain the oil. Then I add 2 quarts oil & fill the rest of the way with Marvel Mystery oil & install a new cheap oil filter & idle for 5 minutes. Lastly, I fill with a good synthetic oil & good oil filter & the oil is so clean that you need to look at the oil dipstick in the sun to see the oil level. My car currently has over 213,000 miles on it & the inside on the valve cover is as clean as when it was a new car.

Regarding frozen piston rings: I used Seafoam & Marvel Mystery oil on my 1991 Honda civic Si that was burning allot of oil @ 200,000 miles. At the time I was using 10-40 oil with Hyperlube, which it really thick & it still burned allot of oil. I took the spark plugs out and poured Seafoam into each cylinder & loosely put the spark plugs back & let it sit overnight. The next day I used a dowel to put into the cylinders through the spark plug hole to see how much liquid was in each cylinder. I then sucked the liquid out & bumped the starter with the sparkplugs out to move the pistons to a different position. I repeated this process for four days/nights using Seafoam two times & Marvel Mystery oil the last two times. When finished, I made sure all liquid was out of the cylinders & put the sparkplugs back in and started the car. Now I put 0-30 oil in car & it burns no oil. The rings must have been frozen with carbon, but they are fine now.

That discolration is from heat as it seems to be a 4 cyl.

Snake oil

The best way to clean the engine is not to get it slugged up in the first place, keep up with oil changes and slugged up engine is destined internal damage you only cleaning the top of the engine what about the lower part/ oil passages /oil pick up tube.

So, I'm guessing here, but after reading most of the comments, first time usage in a car with 130K miles, replace 1 quart with 500 miles left before regular oil change, next oil change add with 1000 miles left, same process again with 2000, then 3000, finally at 4000, then substitute 1 quart of regular oil with Mystery oil at regular 5000 mile changes.
Just purchased a (2014 Toyota RAV4) using 0-20Full Synthetic Oil every 5000 miles. Any comments would be appreciated.

Marella is just thst marvelous works great but you need to run a few k on the engine

Transmission oil let it idle 20 minutes best way

The only thing im concerned about is keeping my oil rings loose and not freeze up. I put MMO in every oil change.

It works. Not kidding. But it wont clean engines too far gone. Use it.

This is a completely inaccurate use of this product. MMO is meant to replace the equivalent amount of oil in the lubricating oil for the duration of a regular oil change. READ THE LABEL. MMO is a great product and does exactly what it says. When used in the fuel it will help eliminate the water that accumulates in the tank from condensation on the tank walls.

On the second oil change the oil from the pan is very dark. I'd attribute that to the MMO and would continue using it in place of 1 qt of oil (on 5qt capacity engines) every 2-3 o/c intervals, which is how I've been doing it for years. PS I do 5000 mile intervals between oil changes with no problems, and add a bottle to a full gas tank at least twice a year.

install a catch can .. done

change your oil and oil filter every 5k miles or 6 months and you will not be wasting money on all these snake oils.

looks alot like redex to me ,though i wouldnt put that in my oil

Engine oil changed regularly is all you need. All these snake oils are laughable 😂

Diesel Engine oil Like Shell Rotella Or Mobil Delvac will Clean a Engine Better they have More Detergents In them then Standard Regular Engine Oils and Yes you Can use Diesel Rated oils in a Gas Engine !!

I remember when MMO was a craze religion cure all just like Sea foam is today. Sea foam is making these cure all snake oil claims just like MMO.
If you change oil regularly and use Top Tier gas, there's no need to waste your money on these B.S. cleaning products.

I learned years ago not to flush the oil system in an engine.If there is sludge build up it washes out and circulates through the bearings and stops up the pick up screen. Also oil filters don't collect everything. If the engine is sludged up it is because of lack of maintenance, driving habits, extreme mileage, or a combination of the previous mentioned. What was shown in this video isn't sludge. At least not anything harmful. Today's engines just don't sludge or coke up like they used to. The oil is different, they heat up quicker and hotter, and the crankcase ventilation is better and no lead in the gasoline. In the 60's through the 70's I used to see sludged up engines every day but these days it is not as common. I don't know if there is any truth to it or if it is an old wives tale about the brown residue but I was told that was only the additives attaching themselves to do their job. Maybe it was just an answer because they didn't know what it was but knew it wasn't harmful.

Valvoline VR-1 racing cleans for sure

Would you use this in a turbo application also?

It was developed to keep piston rings loose, before the advent of juice lifters.

Just another snake oil...

You need to use Motor Medic or similar to flush out that sludge. Mystery oil is best mixed with gas. It stabilises the gas and lubricates the moving parts of the fuel system. It keeps seals from drying out. It also provides top cylinder lubrication at the valve seats and at the top of the cylinder walls. It cleans out the oil passages in the pistons and frees up the ring grooves. Used regularly, MMO will work very well. It is not a one shot deal. It works best over time.

MMO has been around for probably longer than you have been alive and for good reason. If your motivation is to generate hits you will sure succeed bc MMO has been around since 1923. You, sir, are misled by your own claims. REGULAR use will clean up your properly tuned and running engine. But- if you ask enough people the same question, eventually you will get the answer you are seeking.

SEAFOAM ALL DAY!!!!!!!!!

only need to change engine oil regularly , done

no difference, snake oil

Don't flush that motor and clean it used transmission fluid make sure the motor is running before you add it

Funny, the bottle says "helps prevent sludge build up". There was nothing on the bottle that says flushes sludge. In fact it doesn't say "flush" anywhere on the bottle at all