What exactly does Marvel Mystery Oil do?

Marvel Mystery Lubricating Oil is safe for catalytic converters and oxygen sensors. Added to gas it cleans and lubricates fuel injectors and carburetors, improves gasoline mileage, extends spark plug life, reduces and prevents varnish and gum build-up.

Does Marvel Mystery Oil do anything?

Answer: Yes! Marvel Mystery Oil is completely safe in today's high-tech cars and provide the same benefits as it has since 1923-cleaner engines, upper cylinder lubrication, reduced acid and sludge build up, improved fuel economy, clean and lubricated fuel systems and many more!

Why is Marvel Mystery Oil so good?

In addition to cleaning all types of engines, the Marvel Mystery Oil also prevents oil sludge in the engine. Oil sludge may form because of a bad engine design, regular engine work at very low temperatures, or incorrect maintenance intervals. Thanks to its cleaning formula the Mystery Oil saves the day once again.

How often should I use Marvel Mystery Oil?

Repeat at every oil change for optimal performance. Marvel Mystery Oil can be added to engine oil 300 to 500 miles before your next oil change to supplement sludge removal and enhance engine cleaning.

What does Marvel Mystery Oil do in transmission?

In addition to cleaning, Marvel Mystery Oil also increases gas mileage, decreases engine wear and improves overall performance. It can be safely added to automatic transmissions to clean deposits and reduce wear.

What does Marvel mystery oil do?

Does Marvel Mystery Oil clean sludge?

Marvel Mystery Oil can be added to engine oil 300 to 500 miles before your next oil change to supplement sludge removal and enhance engine cleaning.

Is Marvel Mystery Oil a lubricant?

Unlike some products that simply burn up and billow out your car's tailpipe, Marvel Mystery Oil offers long lasting protection to your car's hard working engine, by cleaning and adding a lubricating layer unparalleled by the other so called “Fuel & Motor Treatments”.

Will thicker oil Help worn piston rings?

Use the correct viscosity of oil

The lower the viscosity, the thinner the oil. As you can imagine, thinner oil will slip past worn rings or valve seals easier than thicker oil.

Is Marvel Mystery Oil a penetrating oil?

Marvel Mystery Oil is an automotive product of the American Marvel Oil Company, founded by Burt Pierce in 1923. It is used as a fuel additive, oil additive, corrosion inhibitor, penetrating oil, and transmission leak stopper and seal relubricator.

Does Marvel Mystery Oil contain zinc?

High Zinc Levels Reduce Wear

Using high quality lubricant base oil, advanced additive technology, and an understanding of the lubrication needs of classic cars, we have designed an engine oil just for them. Recommended for use in cars with catalytic converters.

Is Marvel Mystery Oil a detergent?

Marvel® Mystery Oil, and other detergent based lubricants, are excellent for maintaining tight seals in air ratchets and motors. However, when used in a nail gun, it will swell the O-rings and prevent the internal components from moving freely.

Is Marvel Mystery Oil Toxic?

Symptoms/injuries after ingestion May be fatal if swallowed and enters airways. This product may be aspirated into the lungs and cause chemical pneumonitis. May cause stomach distress, nausea, and vomiting.

How long can I run Marvel Mystery Oil in my engine?

I was switching to Marvel Mystery Oil (MMO) as soon as I had used up my gallon of Lucas. I had used MMO in gasoline years ago. Consider that it's at worst lighter weight than your 5W30 and that running a little thinner will not hurt your engine for 3-4000 miles. Winter is upon us.

Can I put Marvel Mystery Oil in my spark plug holes?

Pour a tablespoon of MMO through spark plug hole and into each cylinder. Let sit for 2 minutes. Crank engine for up to 10 seconds. Replace spark plugs.

Does Marvel Mystery Oil clog fuel filter?

mike996 F1 Veteran. Probably the best system cleaner you will ever find is Marvel Mystery Oil. HOWEVER, be prepared to deal with totally clogged fuel filters depending on the gunk in the system. MMO will definitely clean the system/injectors but all that gunk will end up in the fuel filter.

What fuel injector cleaner is best?

Is Sea Foam good for your car?

Sea Foam breaks down buildup that occurs in your car's fuel system, but it can also prevent these deposits from forming. For this reason, regular use is recommended to prevent future problems. Using Sea Foam to clean your car's fuel system lets the engine perform at its full potential.

Will engine flush damage engine?

As General Motors alludes to in the publication above, engine flushes can damage your engine. The chemicals in flushing additives can damage engine seals, leading to expensive repairs in the event of an oil leak. These chemicals can also damage engine bearings; turbochargers and other oil-lubricated components.

Is it good to use motor flush?

A good engine flush can help loosen deposits and dissolve sludge, helping return your engine to like-new condition. However, in old engines with high miles, sludge may be the only barrier keeping oil from seeping through worn or cracked seals. Removing the sludge exposes the seals for what they really are – junk.

What is the viscosity of Marvel Mystery Oil?

Marvel Mystery is a light viscosity oil almost equivalent to SAE 3W. It contains 790 PPM phosphorous additive, wintergreen for smell, dye and 20% solvent, among other things.

Will thicker oil stop lifter noise?

Adding more oil will make the noise go away, but it won't solve the underlying cause of the noisy engine – the oil leak.