Marvel Mystery Oil

[ramcatdoc]

Has anyone ever aerosolized Marvel Mystery oil into their CUCV using an Ampco atomizer? We have a 97 Honda Odyssey with over 300K miles with one on it. Was wondering if you could/would/should do that with a Diesel?

 

[Corvette1974]

I put som MMM in the fuel tank, the Diesels seem to like it.

Will

 

[Gripy]

Look up "diesel fuel additive test" marvel mystery oil was shown to increase wear on the engine. I just pour in some marine 2 stroke oil into my fuel.

 

[JGBallew]

Look up "diesel fuel additive test" marvel mystery oil was shown to increase wear on the engine. I just pour in some marine 2 stroke oil into my fuel.

Considering MMO was mainly intended to be an oil additive, and a fuel dope for gas engines, I'm not at all shocked at this.

 

[Keith_J]

Never introduce ANYTHING flammable into the air intake of a diesel engine. Atomized hydrocarbons included.

Especially for indirect injected engines since they have higher compression ratios. Ignition of such fuels well before top dead center causes pressure spikes that ruin pistons, rings, head gaskets, head bolts and crankshafts.

 

[Corvette1974]

Look up "diesel fuel additive test" marvel mystery oil was shown to increase wear on the engine. I just pour in some marine 2 stroke oil into my fuel.

Considering MMO was mainly intended to be an oil additive, and a fuel dope for gas engines, I'm not at all shocked at this.

I am fully aware of these facts- A little MMM shouldnt affect anything that already isnt going to fail. Its not like running WMO is any better (IIRC that didnt fair any better in the wear test) but who cares.

Will

 

[patracy]

Never introduce ANYTHING flammable into the air intake of a diesel engine. Atomized hydrocarbons included.

Especially for indirect injected engines since they have higher compression ratios. Ignition of such fuels well before top dead center causes pressure spikes that ruin pistons, rings, head gaskets, head bolts and crankshafts.

Not to mention that's a great way to cause a run-away condition. Diesel engines do not have a throttle valve. Their RPM is control entirely upon the amount of fuel introduced into the combustion chambers. If you turn off the key the MMO is still being sucked down the intake. Until it overspeeds and fails (slings rod) or the fuel supply is exhausted or consumed.

Turbocharged diesels have this one weakness. In the event a turbo fails to the point where pressurized oil leaks into the intake path, the engine will keep on running until all the engine oil is consumed. (Or a rod slings)

 

[ramcatdoc]

Yikes,

I think I'll just leave well enough alone! If it ain't broke, I won't fix it!

 

[MarcusOReallyus]

I am fully aware of these facts- A little MMM shouldnt affect anything that already isnt going to fail. Its not like running WMO is any better (IIRC that didnt fair any better in the wear test) but who cares.

Yeah, but why do it if it's not helping and there are better choices for the same money?

 

[Corvette1974]

Yeah, but why do it if it's not helping and there are better choices for the same money?

Hahaha I run Power Service diesel additive through it all the time. I had some MMM and figured what the ****, Lets throw some in! My vehicles are pampered and live a very "normal" life. I dont think a few ounces of MMM in a tank of diesel will make a difference. She runs good regardless.

I have plans to make this thing a WMO eating machine, so we'll see what she likes then.

Will

 

[85CUCVtom]

I personally wouldn't use anything but a dedicated diesel additive. I've been using Stanadyne additive recently and before that I was using Power Service.