I started using MMO in my gas a month ago, and it really helped improve the power and my engine runs a lot smoother with MMO in the gas. Last week I added a pint to my oil and it made my truck run like a brand new truck. It was a night and day difference with faster and easier starts, a smoother, quieter and more even idle and a definite increase in power. I have to make an effort now to keep it under 80 when I am on the interstate.

I am due for an oil change very soon and I wanted to know is it best to always run MMO in the oil or is it better to only add it near the end of your oil change cycle? My truck takes 4 quarts of oil and I was planning to use 3.5 qts of oil and half a quart of MMO. I could even go a little more on MMO and use 12 ounces instead of 8. I don’t think 4 ounces over would cause any foaming or other problems. But I really do want to keep at least 3.5 qts of oil in the engine.

Thanks for your help.

I think it all depends on:

What type of oil you run.

How many miles you go between oil changes.

How many miles are on and what year is the vehicle.

How has the vehicle been maintained in the past.

Generally, I think nothing is better than good, quality oil.

Probably can’t beat MMO for cleansing purposes.

If you’re running non-synthetic oil at regular 3000-5000 mile oil changes, running MMO all the time won’t hurt a thing. If you’re running extended oil changes, put the MMO in towards the later life of the oil change.

Jimmy9190 - 08 January 2010 04:33 AM

I started using MMO in my gas a month ago, and it really helped improve the power and my engine runs a lot smoother with MMO in the gas. Last week I added a pint to my oil and it made my truck run like a brand new truck. It was a night and day difference with faster and easier starts, a smoother, quieter and more even idle and a definite increase in power. I have to make an effort now to keep it under 80 when I am on the interstate.

I am due for an oil change very soon and I wanted to know is it best to always run MMO in the oil or is it better to only add it near the end of your oil change cycle? My truck takes 4 quarts of oil and I was planning to use 3.5 qts of oil and half a quart of MMO. I could even go a little more on MMO and use 12 ounces instead of 8. I don’t think 4 ounces over would cause any foaming or other problems. But I really do want to keep at least 3.5 qts of oil in the engine.

Thanks for your help.

I think your math is off.  Half a qt of MMO is 16 ounces, not 8.  16 ounces in your application is perfect.  MMO can be used at every OCI.  Or if you like can be added at the last 1000 miles if you like.  Problem is that might overfill your sump, and a 4 qt sump is small to begin with.  Run the pint for the full OCI, I have a feeling you’ll be adding it all the time.

AD

Most of our customers add Marvel Mystery Oil when they change their oil and leave it in until the next oil change.  They do this at every oil change.  Since you have a 4 quart system, yes, you can use 16 ounces of Marvel Mystery Oil and 3.5 quarts of your regular motor oil.

My math is wrong...it was late last night when I posted that question. 3.5 qts of oil would indeed take 16 ounces MMO to equal 128 ounces or 4 qts total in the sump. My truck has been running really well with a pint added for the last 1000 miles of my oil change cycle. And it’s still running great now. I think I will stick with that plan and keep running a pint of MMO in the oil.

I really enjoy reading other people’s MMO success stories too. I have been all over the internet looking for MMO info and so far have not found a single report of MMO damaging an engine or causing fuel system damage. And when I find something that works, I stick with it. My truck really is running like new, it has quick smooth cold starts, idles quietly and smooth as butter, and there is a definite improvement in compression, power and acceleration. MMO also got rid of a poor idling issue at start-up and MMO in the oil got rid of a vibration/shudder I had that was present when the engine was warmed up to normal temperature at idle. MMO has worked wonders for my truck and I am grateful for anything that helps my truck run better and last longer. It’s starting to get up there in mileage, it’s almost at 123,000. I hope these threads help others to discover the benefits of MMO too. Thanks for all the help here.

I always use 20%-25% of MMO in every oil change with every car we have. We use 0w-40 and 15w-40 Mobil 1 full synthetic and MMO with Mobil filter. We go 10,000 miles between oil changes. Also, we use MMO with every other gasoline fill-up.

2002 Infiniti-140,000 miles (Family Car)

1996 Nissan-190,000 miles (Our work horse and daily driver)

1993 Chevy truck 1500-180,000 miles ( On light duty and reserve)

Rich Kelly - 08 January 2010 04:07 PM

Most of our customers add Marvel Mystery Oil when they change their oil and leave it in until the next oil change.  They do this at every oil change.  Since you have a 4 quart system, yes, you can use 16 ounces of Marvel Mystery Oil and 3.5 quarts of your regular motor oil.

Not trying to rain on anyone’s parade; however, automobile manufacturers and/or the oil companies state that oil additives are not recommended or required in modern automobiles or oils. They state maintaining correct oil levels and change intervals are the only necessities to engine wear and longevity, as far as oil related wear is concerned?? I do know that gas is not anything like the gas of old and additives there seem appropriate; however, oil formulations seem to have been ever improving and adding “stuff” to it seems contradictory; at least until this latest removal of zinc? After all, the oil refining process seems geared to “refining” stuff out, not putting it back in?

My skeptical nature makes me wonder if all the “additive” addiction is simply more a function of the bottom line to the additive manufacturer than any realized benefit to the consumer? Fuel system cleaners exempted necessarily. As an example, CD-2, or other lead substitute is required in engines not designed for unleaded gas. I do not know of any true benefit of an oil additive, until the elimination of zinc, in modern oil?

I would like someone to make the case for oil additives without the “it just feels smoother, quieter, more responsive,” applesauce that seems to merely justify their having poured an additional $5-$15 worth of ‘stuff’ into their already expensive oil change! Make me a believer. . .

We use MMO in our crank case, transmission, radiator, and gas tank.  My Grandpa used MMO , my Dad used MMO, and I use MMO. 60 years of tradition passed down!

Firewagon - 03 February 2010 02:27 AM

Rich Kelly - 08 January 2010 04:07 PM

Most of our customers add Marvel Mystery Oil when they change their oil and leave it in until the next oil change.  They do this at every oil change.  Since you have a 4 quart system, yes, you can use 16 ounces of Marvel Mystery Oil and 3.5 quarts of your regular motor oil.

Not trying to rain on anyone’s parade; however, automobile manufacturers and/or the oil companies state that oil additives are not recommended or required in modern automobiles or oils. They state maintaining correct oil levels and change intervals are the only necessities to engine wear and longevity, as far as oil related wear is concerned?? I do know that gas is not anything like the gas of old and additives there seem appropriate; however, oil formulations seem to have been ever improving and adding “stuff” to it seems contradictory; at least until this latest removal of zinc? After all, the oil refining process seems geared to “refining” stuff out, not putting it back in?

My skeptical nature makes me wonder if all the “additive” addiction is simply more a function of the bottom line to the additive manufacturer than any realized benefit to the consumer? Fuel system cleaners exempted necessarily. As an example, CD-2, or other lead substitute is required in engines not designed for unleaded gas. I do not know of any true benefit of an oil additive, until the elimination of zinc, in modern oil?

I would like someone to make the case for oil additives without the “it just feels smoother, quieter, more responsive,” applesauce that seems to merely justify their having poured an additional $5-$15 worth of ‘stuff’ into their already expensive oil change! Make me a believer. . .

Why not search the WWW for UOA’s with the addition of MMO. I haven’t seen a bad one yet.  People want pictures and proof, wish my father would have taken some pictures over the years showing what MMO has done for him, my uncle, friends, family, and customers in terms of cleaning up.  He would have had a great photo album.  As it turns out if you get MMO at WalMart it costs about as much as a good qt of conventional oil, and is less than synthetic oil.  Cheap IMO.  I tell people who have doubts to either try the product or continue doing what the feel is best.  It ain’t for everyone.  Maybe Rich K can build a better case for continued use, I’m already sold on the stuff!

AD

At $13 a gallon for MMO at my local Wal-Mart, it’s one of the least costly additives to use. With over 80 years of service, it’s hard to not believe in MMO.

Firewagon - 03 February 2010 02:27 AM

Rich Kelly - 08 January 2010 04:07 PM

Most of our customers add Marvel Mystery Oil when they change their oil and leave it in until the next oil change.  They do this at every oil change.  Since you have a 4 quart system, yes, you can use 16 ounces of Marvel Mystery Oil and 3.5 quarts of your regular motor oil.

Not trying to rain on anyone’s parade; however, automobile manufacturers and/or the oil companies state that oil additives are not recommended or required in modern automobiles or oils. They state maintaining correct oil levels and change intervals are the only necessities to engine wear and longevity, as far as oil related wear is concerned?? I do know that gas is not anything like the gas of old and additives there seem appropriate; however, oil formulations seem to have been ever improving and adding “stuff” to it seems contradictory; at least until this latest removal of zinc? After all, the oil refining process seems geared to “refining” stuff out, not putting it back in?

My skeptical nature makes me wonder if all the “additive” addiction is simply more a function of the bottom line to the additive manufacturer than any realized benefit to the consumer? Fuel system cleaners exempted necessarily. As an example, CD-2, or other lead substitute is required in engines not designed for unleaded gas. I do not know of any true benefit of an oil additive, until the elimination of zinc, in modern oil?

I would like someone to make the case for oil additives without the “it just feels smoother, quieter, more responsive,” applesauce that seems to merely justify their having poured an additional $5-$15 worth of ‘stuff’ into their already expensive oil change! Make me a believer. . .

I somewhat agree with this poster regarding using it in the oil. Unless you’re using it to clean something out that has not been properly maintained, there is no need for MMO in the crankcase, and certainly not keeping it in for an entire oil change interval. You can’t beat a good synthetic with MMO, especially for running at least a 10k OCI, which is what any decent synthetic should be able to do.

As far as in the tank, I use it every oil change, but my oil changes run from 10-20k. I also use it as a stabilizer.

triumph01 - 05 February 2010 02:50 AM

Firewagon - 03 February 2010 02:27 AM

Rich Kelly - 08 January 2010 04:07 PM

Most of our customers add Marvel Mystery Oil when they change their oil and leave it in until the next oil change.  They do this at every oil change.  Since you have a 4 quart system, yes, you can use 16 ounces of Marvel Mystery Oil and 3.5 quarts of your regular motor oil.

Not trying to rain on anyone’s parade; however, automobile manufacturers and/or the oil companies state that oil additives are not recommended or required in modern automobiles or oils. They state maintaining correct oil levels and change intervals are the only necessities to engine wear and longevity, as far as oil related wear is concerned?? I do know that gas is not anything like the gas of old and additives there seem appropriate; however, oil formulations seem to have been ever improving and adding “stuff” to it seems contradictory; at least until this latest removal of zinc? After all, the oil refining process seems geared to “refining” stuff out, not putting it back in?

My skeptical nature makes me wonder if all the “additive” addiction is simply more a function of the bottom line to the additive manufacturer than any realized benefit to the consumer? Fuel system cleaners exempted necessarily. As an example, CD-2, or other lead substitute is required in engines not designed for unleaded gas. I do not know of any true benefit of an oil additive, until the elimination of zinc, in modern oil?

I would like someone to make the case for oil additives without the “it just feels smoother, quieter, more responsive,” applesauce that seems to merely justify their having poured an additional $5-$15 worth of ‘stuff’ into their already expensive oil change! Make me a believer. . .

I somewhat agree with this poster regarding using it in the oil. Unless you’re using it to clean something out that has not been properly maintained, there is no need for MMO in the crankcase, and certainly not keeping it in for an entire oil change interval. You can’t beat a good synthetic with MMO, especially for running at least a 10k OCI, which is what any decent synthetic should be able to do.

As far as in the tank, I use it every oil change, but my oil changes run from 10-20k. I also use it as a stabilizer.

I totally disagree with this post… I run MMO and synthetic for 10,000 miles, and my valves and pistons are clean , clean.  I use MMO every time and I my cars/truck are “smoother, quieter, and has more compression.” I don’t need tests cause I drive them every day, and I can feel it.  We have run MMO in our family’s engines for 60 years and NOT ONE blown/ seized motor. We run it in our cars, trucks, tractors, lawn mowers, snow blowers, weedeaters, air tools, and as a metal protector, bicycles ,hinges...you name it! MMO is the best thing since sliced bread! Period.

My truck runs great on MMO in the gas and oil. I can definitely tell a big difference without it. I add about 12 oz to the crank case when I change the oil (add the 12 oz to a full 4 quart fill, it hasn’t hurt anything at all). Then I add anywhere from 8 oz to 12 oz again at about 1500 miles into the oil change. The amount I add at 1500 miles depends on the oil level at the time. Then at 3000 miles I change the oil and start over again. My engine runs really smooth and quiet and has better cold starts and a lot more power with MMO in the oil, but I think it’s better to add MMO twice during th eOCI rather than substitute a whole quart of MMO for a quart of oil. I only have a 3 qt sump to begin with.

I add MMO to the gas at every fill-up. I take it with me to the gas station or I add it when I get back home from the gas station. I found that the full 4oz to 10 gallons of fuel dose was a bit much and it decreased my MPG. So to experiment, I cut the dose in half, 2 oz to each 10 gallons and the MPG is back up around 18, combined city/highway driving. My engine has a lot better power, and the throttle response is a lot better on MMO.

I will keep on using MMO in my truck because it runs great on MMO. I only wish I had discovered MMO sooner.

Jimmy

I totally disagree with this post… I run MMO and synthetic for 10,000 miles, and my valves and pistons are clean , clean.  I use MMO every time and I my cars/truck are “smoother, quieter, and has more compression.” I don’t need tests cause I drive them every day, and I can feel it.  We have run MMO in our family’s engines for 60 years and NOT ONE blown/ seized motor. We run it in our cars, trucks, tractors, lawn mowers, snow blowers, weedeaters, air tools, and as a metal protector, bicycles ,hinges...you name it! MMO is the best thing since sliced bread! Period.

So you think you can feel a difference between MMO and a top quality synthetic? Do you also believe in Santy Clause?

Bro, I am saying I feel a difference when I use MMO in conventional or synthetic oil. IT IS THE MMO! I can still squeel the tires and I have 190,000 miles on this engine. You believe what you want, but I will for ever use MMO in my combustion engines!