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#3343822 - 04/15/14 07:27 PM MMO to clean motor?
Spetz Offline


Registered: 01/23/14
Posts: 235
Loc: Australia
I've read here that people use MMO to clean out their motor by putting it in the gas tank and/or the oil.

Seeing as normally after running some cleaner through the gas/oil you'd need to do an oil change, is this still valid for MMO?

Is MMO really this wonder solution?

And lastly, anyone know where I could get MMO in Australia?
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#3343827 - 04/15/14 07:31 PM Re: MMO to clean motor? [Re: Spetz]
Realtech214 Online   happy


Registered: 02/01/13
Posts: 676
Loc: Florida
MMO doesnt do anything except make you feel better about life, At least thats all it did for me. approved
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2015 Silverado Crew Cab 5.3 LT
2001 Suburban LT
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#3343858 - 04/15/14 07:52 PM Re: MMO to clean motor? [Re: Spetz]
gathermewool Offline


Registered: 01/09/09
Posts: 4893
Loc: New England
Most engines don't need any cleaning at all, if maintained properly. Choose any API SN-rated oil and change it at an appropriate interval, keep it indicating on the dipstick, and then forget about it altogether.
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#3343890 - 04/15/14 08:11 PM Re: MMO to clean motor? [Re: Spetz]
Zaedock Offline


Registered: 09/10/05
Posts: 3899
Loc: Massachusetts
I have observed a visual difference in cleanliness using MMO. I have also had good results using Auto Rx, which I recommend. I have no idea where you would buy MMO in Australia, but Auto Rx can be purchased via the website.
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1992 YJ "The Heep"/2004 Malibu Maxx LT
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#3343897 - 04/15/14 08:13 PM Re: MMO to clean motor? [Re: Spetz]
gregk24 Online   content


Registered: 04/13/13
Posts: 4695
Loc: FL, USA
I have personally never used it, but my dad uses it to top of his Silverado every now and then when the oil runs low. All I know is the lifters clacked before MMO, and after MMO.
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#3343947 - 04/15/14 09:00 PM Re: MMO to clean motor? [Re: Spetz]
expat Offline


Registered: 05/12/09
Posts: 5145
Loc: Canada
I bought a truck that had been in storage for over 20 years.
It ran well enough but had a rough idle, burned a little oil, annd lacked torque off idle.

I tired a cleaning product, but it had no effect (other than lightening my wallet)
After about 18 months use with no improvement, I tried, as a last effort 500cc of MMO in the oil.
After about 200miles, I was in town, waiting at a traffic light, and I thought my engine had stalled. It had not! it was idling smooth for the first time!
Oil consumption is reduced to '0'
Low speed torque is fine.

I guess I had some sticky rings that became un-stuck.

I don't believe it a miracle cure in a bottle, but if you have a problem, it's proven safe, and it's cheap and it CAN help.

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#3343977 - 04/15/14 09:25 PM Re: MMO to clean motor? [Re: Realtech214]
Donald Offline


Registered: 03/21/04
Posts: 17588
Loc: Upstate NY
Originally Posted By: Realtech214
MMO doesnt do anything except make you feel better about life, At least thats all it did for me. approved


I did recently squirt some down the spark plug holes of the old Ford engine in my snowcat since it had not been run in awhile. But on any engine that runs well, why would you?

It not make me feel better or worse about life.
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#3343979 - 04/15/14 09:26 PM Re: MMO to clean motor? [Re: Spetz]
Sam2000 Offline


Registered: 03/25/14
Posts: 400
Loc: Nevada
MMO was run out of Oz when the Aussies learnt it dropped the oil down a grade.

70 to 60 was ok but 40 to 30 crossed the line.

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#3343989 - 04/15/14 09:38 PM Re: MMO to clean motor? [Re: Spetz]
Shaman Offline


Registered: 07/27/04
Posts: 2330
Loc: Frankfort, Kentucky
I think that the number of "correctly maintained" vehicles in the world is inversely proportional to the amount of "you don't need it if your vehicle is correctly maintained" comments on this site.

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#3343992 - 04/15/14 09:40 PM Re: MMO to clean motor? [Re: Spetz]
SrDriver Offline


Registered: 12/09/06
Posts: 2766
Loc: Southeast Alabama
Use 20% MMO during an oil change. Run it for about 1000 miles and then drain and refill with oil.

MMO is a mild cleaner.

3 to 4 oz of MMO in the gas tank per 10 gallons of gasoline is what I use too at each time I fill the tank or both my wife's and my vehicles.

If you don't see any improvement then simply quit using it.

I have had good luck over many years using it in both vehicle and aircraft engines.

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#3344231 - 04/16/14 07:48 AM Re: MMO to clean motor? [Re: Spetz]
dave5358 Offline


Registered: 04/25/13
Posts: 669
Loc: North Bend
Originally Posted By: Spetz
I've read here that people use MMO to clean out their motor by putting it in the gas tank and/or the oil. Seeing as normally after running some cleaner through the gas/oil you'd need to do an oil change, is this still valid for MMO?

No, if you run it in the fuel, it has no effect on the oil

Originally Posted By: Spetz
Is MMO really this wonder solution?

Yes

Originally Posted By: Spetz
And lastly, anyone know where I could get MMO in Australia?

No idea. Start with auto parts suppliers. Or, farm supply stores. Or, send an email to INFO@TURTLEWAX.COM and ask them who distributes it downunder.
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#3344232 - 04/16/14 07:50 AM Re: MMO to clean motor? [Re: Sam2000]
dave5358 Offline


Registered: 04/25/13
Posts: 669
Loc: North Bend
Originally Posted By: Sam2000
MMO was run out of Oz when the Aussies learnt it dropped the oil down a grade. 70 to 60 was ok but 40 to 30 crossed the line.


Most unlikely.
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#3344250 - 04/16/14 08:08 AM Re: MMO to clean motor? [Re: SrDriver]
dave5358 Offline


Registered: 04/25/13
Posts: 669
Loc: North Bend
Originally Posted By: SrDriver
Use 20% MMO during an oil change. Run it for about 1000 miles and then drain and refill with oil. MMO is a mild cleaner.

One possible use: MMO used as an engine cleaner - added to oil. If you change your oil regularly, your engine should probably not need cleaning.

Originally Posted By: SrDriver
3 to 4 oz of MMO in the gas tank per 10 gallons of gasoline is what I use too at each time I fill the tank or both my wife's and my vehicles. If you don't see any improvement then simply quit using it. I have had good luck over many years using it in both vehicle and aircraft engines.

+1. Note that this responder has described using MMO in two distinctly different ways. The MMO folks suggest 1 quart per 1000 miles, mixed in fuel.

MMO has a following (as well as detractors) among small aircraft owners. Years ago, the US Air Force used it in the far east - not quite sure what for - possibly in light observation aircraft. It's popular for use in stationary engines. Several LPG/CNG conversion companies include inverse oilers in their conversions or kits.
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#3344254 - 04/16/14 08:15 AM Re: MMO to clean motor? [Re: dave5358]
demarpaint Offline


Registered: 07/03/05
Posts: 26262
Loc: NY
[quote=dave5358]
One possible use: MMO used as an engine cleaner - added to oil. If you change your oil regularly, your engine should probably not need cleaning.

The key word is should. There are no guarantees in life. Should was a good choice of words! smile
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#3344272 - 04/16/14 08:51 AM Re: MMO to clean motor? [Re: Shaman]
yesthatsteve Offline


Registered: 06/27/11
Posts: 679
Loc: Kansas City, MO
Originally Posted By: Shaman
I think that the number of "correctly maintained" vehicles in the world is inversely proportional to the amount of "you don't need it if your vehicle is correctly maintained" comments on this site.


+1
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