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Old 03-14-2012, 04:20 PM   #1
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marvel mystery oil?

Hello,

I have been having a sporadic ticking noise coming from my 97 4.0. I'll get a pretty loud ticking once the engine has been driven for a while and warmed up a bit, then it will gradually go away as the engine gets warmer/runs for a while. I'm fairly certain its a lifter or a valve. Everyone I've asked about it said to try out a little bit of marvel mystery oil for about 500 miles then change the oil- i need a change next month anyways. I'm a bit skeptical of putting this stuff in there since its just rebadged atf fluid or the likes and since the engine has 190,000 miles on it. Does this stuff do more harm than good? Does anyone recommend trying it?

thanks

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Old 03-14-2012, 06:17 PM   #2
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It's a highly DETERGENT Lubricant. It wont cause you / Motor any harm. It will assist
in the breakdown of Varnish / Sludge and particles that may or may not be causing
things such as Lifter drag. On the FLIP side, if your Motor has had POOR Maintenance
throughout it's lifetime, such as Oil changes at 30,000 mile intervals, and it's all
gummed up with sludge / Carbon build up and a host of other things, then a HIGH
DETERGENT CLEANING could even make it noisier by.
In reality, you can accomplish the same thing by adding a 1/2 gt of Diesel Fuel to
the Crankcase.

All so remember this, A Ticking Lifter DOESN'T always mean a sticky lifter, or dirty
components, THEY COULD be just worn out, or in need of servicing or adjustment,
NOT to mention a host of OTHER ISSUES.
Just say-en.

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Old 03-14-2012, 06:54 PM   #3
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I had same issue. Changed oil with Valvoline high mileage synthetic blend and tossed in part of a can Seafoam. A few tanks of gas latter, no tick.
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Old 03-14-2012, 06:54 PM   #4
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Marvels has a lot if Zinc Phos in it. That could help some too.
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Old 03-14-2012, 07:01 PM   #5
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has anyone used it in their auto trans? i read on their site you can. is it worth it in you opinion to go through the hassle of draining the fluid? or is there a drain plug i dont know about? with the price i plan on using it this weekend when i do the oil and ill add some to the gas as well.
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Old 03-14-2012, 08:05 PM   #6
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I use MMO in my gas. Also you can use ATF in gas too. It lubricates parts. Gas today is so dry that I like it to help lubricate the injector. I have used it in the crankcase too. But for that I like Seafoam Like said, it is high in detergent.
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Old 03-14-2012, 09:29 PM   #7
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Been using MMO in aircraft fuel since 1980. The shop that overhauled my aircraft engine said that the fuel was so dry these days ( bear in mind this was 1980) that they reccomended 3-4 oz of MMO per 10 gals of fuel. MMO is an excellent upper cyl lube, good for the valve system and rings. Aircraft owners that have had problems with stuck valves have had great luck with it freeing up the valve. Sure won"t hurt anything to run it in your oil or fuel.
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Old 03-14-2012, 09:56 PM   #8
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Thanks for the replies everyone.

The engine has been maintained well- I dont drive the Jeep a whole lot- usually less than 6-7,000 miles a year and usually only have to change the oil about every 6 months. When I change it out it is almost never very 'dirty', its still a shade of brown and doesnt look to bad- I never do real short trips and always either take the long way and drive around a bit to fully warm things up if I can't avoid alot of short trips/errands. I use synthetic 10w-30 walmart supertec oil and dont beat on her. 190,000 miles really isnt that much for a 4.0, considering I haven't neglected it/ ran it particularly hard.

Whats the procedure for using the stuff? Just add a bit, drive for a couple hundred miles then change oil? Will one oil change get all of the stuff out?
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Old 03-14-2012, 10:01 PM   #9
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Quote:
Originally Posted by lucky4075 View Post
Thanks for the replies everyone.

The engine has been maintained well- I dont drive the Jeep a whole lot- usually less than 6-7,000 miles a year and usually only have to change the oil about every 6 months. When I change it out it is almost never very 'dirty', its still a shade of brown and doesnt look to bad- I never do real short trips and always either take the long way and drive around a bit to fully warm things up if I can't avoid alot of short trips/errands. I use synthetic 10w-30 walmart supertec oil and dont beat on her. 190,000 miles really isnt that much for a 4.0, considering I haven't neglected it/ ran it particularly hard.

Whats the procedure for using the stuff? Just add a bit, drive for a couple hundred miles then change oil? Will one oil change get all of the stuff out?
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Old 03-15-2012, 05:56 PM   #10
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The procedure will be on the instructions of the product.
First thing I would do Is look for signs that your lifter may be gummed up, does the oil turn black very quickly after changing? take a peak into the fill hole and look for sludge and varnish. If you think thats whats causing it then give MMO a try, otherwise it really wont do much but thin your oil.

MMO thins your oil as its a grade 3 oil.
If I was going to use MMO I would use 5 quarts of whatever oil you like 10w-40 (conventional preferably because it will be a short Oil Change Interval) and 1 quart of MMO (this is for the 4.0 that requires 6 quarts)
I would then run the oil for 1-2 thousand miles (or when it turns black) and then go back to your normal oil change routine. if you still find its sludgy then keep repeating. MMO works pretty slowly and is not a fast working solvent like other products (which is good, you dont want big chunks of sludge breaking up and find a way to clog up an oil gallery).

also, during the use of MMO keep an eye on oil level, MMO will actually burn off during use and oil might need to be topped off.

but the best way to deal with sludge is to never let it happen in the first place. use quality oil and keep it clean by changing it to your requirements
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Old 03-15-2012, 06:04 PM   #11
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I just put 1/2 a quart in the jeep yesterday to top off low oil level. I will run it until next week then do an oil change. I have used it before to free a stuck valve on a ford 302. good stuff
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Old 03-15-2012, 08:32 PM   #12
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What all crap is in that stuff? How much tar, wax, and so on? I wouldn't want that crap in my oil. How much is this affecting the additive package that is in your oil?

There is a lot ot oil other than just it being in a jug. Synthetic oil is not full synthetic unless you buy a few brands like red line and other but you will pay for them.

I link an article when I get to a different computer that I have.
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Old 03-15-2012, 08:39 PM   #13
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i just put about 6oz into about 3/4 tank and drove about 50 miles, ill let yall know if the cold tick is still there in the morning. my guess is it well be since its not in the oil yet that happens tomorrow
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Old 03-15-2012, 08:42 PM   #14
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Quote:
Originally Posted by brendend View Post
i just put about 6oz into about 3/4 tank and drove about 50 miles, ill let yall know if the cold tick is still there in the morning. my guess is it well be since its not in the oil yet that happens tomorrow
You put what into your tank?
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Old 03-15-2012, 08:43 PM   #15
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MMO is

70% Light Aromatic Oil (Pale Oil)
- It is a Naphthenic Oil, so while it oxidizes faster than a Paraffinic oil, it does clean and dissolve sludge and carbon well and cleans up after itself from any oxidation. serves as base oil as well. [Naphthenic oils have more solvency and are more polar (they are attracted to metal more), but oxidize faster.

29% Mineral Spirits
- Cleans Varnish very well. General cleaner. Also acts as an antioxidant.

38 parts per million (ppm) Boron
- AW/EP agent, friction reducer, antioxidant

900 ppm Phosporous
- AW/EP agent

1/2% 1, 2 ortho-Dichlorobenzene
- EP agent as it interacts with Iron to form an Iron chloride barrier under any ZDDP or other AW additives. Also very good cleaner/solvent, and friction reducer

1/4% 1, 4 para-Dichlorobenzene
- EP agent as it interacts with Iron to form an Iron chloride barrier under any ZDDP or other AW additives. Also very good cleaner/solvent, and friction reducer

Oil of wintergreen - for the scent
- Not just for the cent, is also a cleaner. may aid lubricity.

Red Dye - for the color
- well this one just colors the stuff
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Old 03-15-2012, 09:12 PM   #16
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Quote:
Originally Posted by Mortalis5509 View Post
You put what into your tank?

mmo.

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