Can MMO be used in a radiator?

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So this is my 1st post, after reading a lot of great info here, I wanted to get this question off my chest before I try this and potentially mess something up.

http://www.marvelmysteryoil.com/index.php/forums/viewthread/294/
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I use 15w-50 Mobil 1 with Mobil Oil Filter, and 20% of MMO in the crank, 16oz of MMO in the Transmission, 6oz in a full gas tank, and 4oz in the radiator. Thanks MMO! I go every 6k between oil changes with good oil.


https://bobistheoilguy.com/forums/posts/1696822/
Originally Posted By: Warstud
Never thought of putting MMO in the radiator.
shocked.gif



http://www.marvelmysteryoil.com/index.php/forums/viewthread/238#966
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Yes, MMO dissipates heat better than most products and that’s why is works so well with synthetic oil lowering engine temp. I also use MMO in the radiator. Cooler engines run better, longer.

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Yes everyone, I use MMO in my radiator! And the cars runs better, but my temp gauge flickers when i get on the gas, but that could be a vacuum leak that I haven’t found yet.

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Some of us have no idea why anyone would do this. Oil and water separate.

http://www.marvelmysteryoil.com/index.php/forums/viewthread/229/
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I read a post in the Marvel Tales where a guy had some rusty looking coolant and the only thing that stopped it was adding some MMO too the coolant. My coolant is nice and green but have you tested MMO in the cooling system or is this something you do not recommend.

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I use MMO in my radiator in all of my cars. I have a Nissian, Infiniti, and Chevy truck. They run cooler, break down all that junk inside the engine block, and MMO lubricates the water pump.

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DFD1 is right, water and oil do not mix but, their may be a slight chance if you are using 100% propylene glycol, no water added. Glycol is used in Deisel fuel additives (winter) and I use a combination with MMO, never had any issues. Try an experiment, use a small cup, put some of your antifreeze in it, add some MMO. If it blends with no reaction it will be OK, however, if it reacts such as temperature change, precipatation, coagulation or other, forget about it.

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I use 6oz of MMO in all my radiators and will continue to do so.

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Hey, just want to update my MMO in my radiator. Everything looks good in my coolant system and I placed 32 oz in my radiator with full antifreeze, no water… Oh, my baby runs smoooth, but now my temp, gauge flickers..not bad, but it slightly flickers.
 
I would be concerned with the chlorine and other chemicals being heated and pressurized in the cooling systems, and the effects on the aluminum parts: radiator, heater core, water pump, heads, head gasket, metal water lines, etc.
 
Don't put MMO in the coolant.

*Coolant hoses are not designed to resist oil.

*Coolant sensors do not function well when coated with oil.

*Modern water pumps use sealed bearings and don't require additional lubrication, in fact oil can damage water pump seals and cause a leak.

I'm sure there are lots of other reasons but that's enough to get you started.
 
I used MMO in my radiator but that was because I used it in the crankcase with a blown head gasket.
grin.gif
 
man - next thing ya know they'll say to put it in the washer fluid tank to lube the washer pump and to wash your vehicle in MMO to make it go faster
 
Originally Posted By: steveh
Whats with the MMO fad over the last year? It went from Auto-RX fad to the MMO fad.


Because there are always vehicle owners who believe additive vendor's claims and their judgement is superior to the recommendations & precautions of the engineers who designed their vehicles.
 
Originally Posted By: Trav
Don't put MMO in the coolant.

*Coolant hoses are not designed to resist oil.

*Coolant sensors do not function well when coated with oil.

*Modern water pumps use sealed bearings and don't require additional lubrication, in fact oil can damage water pump seals and cause a leak.

I'm sure there are lots of other reasons but that's enough to get you started.


+1 Water, oil, and anti-freeze don't mix! I don't recall the makers of MMO ever stating it can be added to the raditor, unless that's something new? I'm thinking this is something someone tried on their own, and decided to call it another use for MMO. Bottom line, I wouldn't do it.
 
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Because there are always vehicle owners who believe additive vendor's claims and their judgement is superior to the recommendations & precautions of the engineers who designed their vehicles.



Not always the case, some owners bought the car used and there are issues due to lack of maintenance. Sometimes owners see a problem developing and don't wait for a manufacturers TSB before taking precautions.

Some good examples of this are carbon and coolant leaks issues e.g. Cadillac N* it took a while for the TSB recommending the use of Top Engine Cleaner and sealing tabs to come.
SAAB shifting issues where the TSB recommended Lube Guard Red.

Many Toyota, VW, Chrysler sludge issues were avoided by owners taking action before the TSB and the engine was a right off.
 
Originally Posted By: 660mag
Nice. Good for split ends too, tell your wives.


My wife's split end pretty much lubes itself! I use the MMO when she gets older.
 
Runs cooler? The thermostat opens and keeps the coolant between a small range which is the proper operating temperature of the engine. That's the point of the thermostat. Cooler than that can be as much as a problem as hotter.
 
There are a LOT of MMO junkies out there..... That is scary. I wonder if they add it to their toothpaste? Evening drink?
 
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