Marvel Mystery Oil and Johnson O/B

[bradheil]

O.K. Gentleman, <br />I have always used Marvel Mystery Oil in my auto fuel and oil, all of the boats I have had both inboard, I/O, and outboard, and also in my lawn and garden equipment. Having a 1999 150hp Johnson Ocean Pro does anyone see a reason not to use it in both the fuel and oil with this engine?<br />Brad

 

[steelespike]

Re: Marvel Mystery Oil and Johnson O/B

I wouldnt unless I got the info from MM oil<br />or your dealer.

 

[ob]

Re: Marvel Mystery Oil and Johnson O/B

Brad ,since you and many others have used MM oil in various engine applications over the years it is apparennt that no specific deleterious effects have occured.The million dollar question is ,has it improved performance or prolonged engine life?Maybe the marvel is that it doesn't hurt and the mystery is if it helps.

 

[bradheil]

Re: Marvel Mystery Oil and Johnson O/B

OB,<br />I have used MMO for years. With everyone of my vehicles I have gotten over 250,000 miles on them. This is of course with oil changes every 3,000 miles. I also know that MMO is a reliable fuel additive for (I'm stumped for the word) storing fuel. Anyway I was curious to know if anyone had any negative things to say about it, or if you or one of the other experts knew a little something more than I. Thanks.<br />Brad

 

[ob]

Re: Marvel Mystery Oil and Johnson O/B

I've never used it ,however that doesn't mean I think it doesn't have some positive effects on duration or even performance.I simply don't know .Kind of like the other additive products such as prolong ,Z max,and the like.However MMO has been around longer.Seems all the reports on these other additives is subjective and leaves question and doubt of their claims.They don't seem to inhibit performance or duration of engines used in ,however, their possitive effects have been subject of debate since introduced.At 30 bucks per treatment for some of these products seems expensive to experiment with something that won't do any harm yet doesn't unquestionably warrant that it is far superior than conventional lubrication without its presence .It's kind of like faith.If you believe in it maybe it does something.

 

[bradheil]

Re: Marvel Mystery Oil and Johnson O/B

Hey OB,<br />Your right about some of the other additives, they have not been aound as long and they are quite pricey. As for MMO at $3.79 a bottle from Western Auto I can handle that. I got started on MMO from my Grandfather. He used to tell me "During WWI and WWII that the airplane mechanics always used it." Is this a story? could be but, he was convincing and I have used it for the last 25yrs. without incident. Thanks again.<br />Brad

 

[Reel Appeal]

Re: Marvel Mystery Oil and Johnson O/B

What effects(if any)will Marvel Mystery Oil have on your 1999 VRO pump?Now there's a mystery....

 

[bradheil]

Re: Marvel Mystery Oil and Johnson O/B

Reel Appeal,<br />Go ahead make things difficult After the debate on the VRO pump now you want to throw screws into my head. I'm still spinning from before. Good question and challenging thought though. I hadn't thought of that until I read your question. That's why I like this site, someone may see something a little different than someone else and it makes you think. So do you know what it will do to the pump? Thanks<br />Brad

 

[Reel Appeal]

Re: Marvel Mystery Oil and Johnson O/B

Heh,sorry Brad,did not mean to make your head spin or throw screws Sorry,I do not know what(if any again)consequences there are to this.In this forum,there is a guy named Joe Reeves with 30+yrs.experience with OMC engines.Maybe he (or others)would know. I beleive Marvel Mystery Oil is classified as a petroleum distalette.Some distalettes have negative effects on certain materials. I would check with someone who knows better than I before using in gas or oil(outboard).

 

[bradheil]

Re: Marvel Mystery Oil and Johnson O/B

Reel Appeal,<br />Thanks for the info. I will try and check with Joe Reeves about this. Don't worry about making my head spin, my wife keeps me dizzy all of the time, but I love her Thanks<br />Brad

 

[Hooty]

Re: Marvel Mystery Oil and Johnson O/B

If ya mix the MMO with the fuel, it won't have any effect on the oiler.<br />MMO with a little Liquid Wrench is super stuff for un-sticking stuck engines too.<br /><br />c/6<br /><br />Hooty

 

[my new fishmaster]

Re: Marvel Mystery Oil and Johnson O/B

Sounds like you also call Cleo twice a week too. There is no such thing that makes engines last longer that you can purchase for the cheap and pour in. Na just dont use it in your outboard I once tried synthetic outboard oil and needed to rebuild my fuel pump one year latter on a new engine.

 

[Walker]

Re: Marvel Mystery Oil and Johnson O/B

We had some Mack firetrucks that had upper cylinder injection systems that used MMO. They were still running good after 30 some years. Heck, everything was falling apart on them except the motors. <br />I puts the stuff in my pickup, in the fuel, and I have done nothing to the injector pump for over 100,000 miles.

 

[BillP]

Re: Marvel Mystery Oil and Johnson O/B

I personally don't believe in additives unless the manufactures says to use them. An engine maintained by the book usually lasts as long as any.<br /><br />For every MMO "miracle" engine there are 10 x 1000s of non MMO engines that ran just as long and as well. I don't mean to say MMO is bad but it would be nice to see scientific testing data to support the reasons for use.

 

[Solittle]

Re: Marvel Mystery Oil and Johnson O/B

I'll leave the pro-con on MMO to others. Assuming I want to use it in addition to TCW-3, how much should I use - ie what is the mix ratio?

 

[speed29668]

Re: Marvel Mystery Oil and Johnson O/B

Another question would pertain to how well it burns. Outboard oil is made to burn off in the cylinder and does not leave an ashy residue. MMO might be made only for four stroke engines which have separate lubication systems.

 

[BillP]

Re: Marvel Mystery Oil and Johnson O/B

Since MMO is a solvent, you don't want to use enough in the gas/oil mix to dilute the lube...the million dollar question is how much is right?

 

[bradheil]

Re: Marvel Mystery Oil and Johnson O/B

Well guys,<br />From my perspective MMO is useful in both 2 & 4 stroke engines. As someone else pointed out it is also useful in diesel engines. When it comes to mixing I have always followed the directions on the bottle. I'm not going to sit here and try and sell anyone on MMO, I believe it is a personal conviction whether one uses it or not. Just as someone else also said, for every MMO miracle there are probably just as many miracles without it. I can only tell you that I have used it in every boat, car, truck, and small engine I have ever had. On all of my vehicles I have had over 300,000 miles on them before I had to get rid of them. Every time it was because of the structural integrity I have gotten rid of them not the engine. I do however change my oil every 3 to 4 thousand miles. The boats that I have had I have always gotten rid of because of my use changing and one particular boat not fitting into my scheme at that time. Is this a testimony for MMO? it could be but, my initial question was to find out if anyone knew of a reason not to use it. Reel Appeal brought light to something I don't know about "What will it do to the VRO pump?" I cannot say that MMO has made all of my engines last as they have. However I cannot say that it hasn't either. Thanks for all of the feedback it really challenges you to think.<br />Brad