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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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Old 03-16-2005, 08:39 PM   #1 (permalink)
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Marvel Mystery Oil

Is this stuff any good for our trucks? Where can it be used... and how much should be used?

I have some that's been lying around for awhile... wouldn't mind using it.


Thank you,
Mike
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Old 03-16-2005, 08:42 PM   #2 (permalink)
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Re: Marvel Mystery Oil

well im about to open a huge debate but i used it and noticed a differnce! YOu put quart of it in your crank(note: you must be a quart low so you dont over fill on oil) and then i belive there is a ratio is on the back to mix it with fuel. it wont hurt your truck at all so if youve got it throw it in and you be the judge!


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1991 F250 7.3l 200XXX extended cab long bed. 3.55's REDNECKED OUT!! 295/75/16 Bfg All Terrains 16 in billet rims. New front brake pads and rotors, rear shoes, glow plug controller, glow plugs, return line kit duralast batteries, mitubishi off set gear redution starter, altenator, valve cover seals, holley red pump,new injector pump, soon to be new injectors, new vacum pump. Removed soup bowl and drilled holes in air intake.


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Old 03-17-2005, 03:44 AM   #3 (permalink)
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Re: Marvel Mystery Oil

I add 4oz to each tank at fillup, or a half gal of veggie oil. Noticable idle quality improvment, not to mention it sounds better.
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Old 03-17-2005, 06:57 AM   #4 (permalink)
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Re: Marvel Mystery Oil

I use it in every thing I own, boats cars motorcycles you name it I have put MMO in it.

I put 6oz on a fill up from a quarter tank in my truck every fillup, got a little bottle I keep in the tool box, keep one in the car and motorcycles also, buy it by the gallon. [img]/ubbthreads/images/graemlins/smile.gif[/img] [img]/ubbthreads/images/graemlins/smile.gif[/img]
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Old 03-17-2005, 08:44 AM   #5 (permalink)
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Re: Marvel Mystery Oil

Wow... never thought so many would use the stuff... Will go ahead and use the rest of this bottle up and see how things go.

Thank you,
Mike
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Old 03-18-2005, 08:55 AM   #6 (permalink)
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Re: Marvel Mystery Oil

Yeah it works really good. It cleans injectors and lubricates the IP. I've put it in gassers that had valve train rattle and it does a good job of taking the rattle away. MMO mixed with Lucas Oil or Power punch also works great as a lubricant when putting motors together.
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Old 04-04-2005, 06:58 PM   #7 (permalink)
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Re: Marvel Mystery Oil

You ain't KIDDIN!!! Wow! I added some to my crankcase today (less than a quart to top her off) and added 4 oz to my front fuel tank.

What a difference! The truck seems smoother and seems to have more power. I'm amazed. I'm not sure why the power would seem to have increased--I'm already running Fred's hair tonic.

Maybe I should just run MMO if it is going to do this well... :-)

At less than $4.40 a quart, I can't complain.

Mike
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Old 04-04-2005, 08:03 PM   #8 (permalink)
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Re: Marvel Mystery Oil

I'll have to give it a try. I have always used Rislone. It has fixed many an engine that seemed to need rebuilt. [img]/ubbthreads/images/graemlins/cool.gif[/img]
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Old 04-04-2005, 08:40 PM   #9 (permalink)
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Re: Marvel Mystery Oil

i wonder if we can run this isntead of power service meaning i wonder if it lubricates the ip as well?
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1991 F250 7.3l 200XXX extended cab long bed. 3.55's REDNECKED OUT!! 295/75/16 Bfg All Terrains 16 in billet rims. New front brake pads and rotors, rear shoes, glow plug controller, glow plugs, return line kit duralast batteries, mitubishi off set gear redution starter, altenator, valve cover seals, holley red pump,new injector pump, soon to be new injectors, new vacum pump. Removed soup bowl and drilled holes in air intake.


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Old 04-04-2005, 09:29 PM   #10 (permalink)
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Re: Marvel Mystery Oil

Never heard of it. Wonder if I can get it here in Canada? What is it just a oil additive or for gas too?



GREG
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Old 04-04-2005, 09:59 PM   #11 (permalink)
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Re: Marvel Mystery Oil

Well, MMO claims to lubricate the entire fuel system, including pumps...

My truck seems so happy I'd consider driving it to school tomorrow if diesel weren't north of $2.50 a gallon here.


Mike
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Old 04-05-2005, 12:34 AM   #12 (permalink)
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Re: Marvel Mystery Oil

It's reccomended for lubing the IP pump in my Alfa Romeo. That pump has 1500 pieces to it. About the same price as Power Service with out the cetane boost. [img]/ubbthreads/images/graemlins/smokin.gif[/img]
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Old 04-05-2005, 07:12 PM   #13 (permalink)
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Re: Marvel Mystery Oil

[ QUOTE ]
I use it in every thing I own, boats cars motorcycles you name it I have put MMO in it.

I put 6oz on a fill up from a quarter tank in my truck every fillup, got a little bottle I keep in the tool box, keep one in the car and motorcycles also, buy it by the gallon. [img]/ubbthreads/images/graemlins/smile.gif[/img] [img]/ubbthreads/images/graemlins/smile.gif[/img]

[/ QUOTE ]

where do y'all buy it? [img]/ubbthreads/images/graemlins/biggrin.gif[/img]
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Old 04-05-2005, 09:58 PM   #14 (permalink)
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Re: Marvel Mystery Oil

Any auto store should sell it. I got mine at Kragen's. Red plastic jug. 1 quart size or 1 gallon size.
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Old 04-06-2005, 02:36 AM   #15 (permalink)
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Re: Marvel Mystery Oil

Wal-Mart / Sams club
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