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#4497007 - 08/24/17 01:58 PM Can I use MMO every fillup?
2012AccentSE Offline


Registered: 10/08/13
Posts: 407
Loc: TX
I've been using Lucas UCL for a while now, but I see that I can save about 8 bucks a gallon if I buy MMO (23 bucks for UCL and 15 for MMO). Will there be any negative effects from using it in the fuel primarily? I used UCL everyfill up with no issues. Can I expect the same with MMO?
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#4497015 - 08/24/17 02:03 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
leroyd92 Offline


Registered: 01/21/14
Posts: 494
Loc: AZ
Yep. 4 oz per 10 gallons.
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#4497021 - 08/24/17 02:04 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
BigJakeChevy Offline


Registered: 07/26/15
Posts: 126
Loc: Alberta
I do in both my vehicles, everytime.
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#4497026 - 08/24/17 02:10 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
2012AccentSE Offline


Registered: 10/08/13
Posts: 407
Loc: TX
How often do you use it in the oil? Will there be any switching effects from going from UCL to MMO?
_________________________
2008 F150 KR 5.4L 3v
Left over oil mix...
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2010 Corolla 1.8L
Mobil 1 5w20
Toyota OEM

2014 CFMoto 650NK
Rotella T6 5w40
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#4497030 - 08/24/17 02:11 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
kschachn Offline


Registered: 12/26/05
Posts: 9420
Loc: Upper Midwest
Originally Posted By: 2012AccentSE
How often do you use it in the oil? Will there be any switching effects from going from UCL to MMO?

What effects do you see now that might be affected?
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#4497031 - 08/24/17 02:12 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
leroyd92 Offline


Registered: 01/21/14
Posts: 494
Loc: AZ
1 or 2 oz in the small engine gas can

Same for 2cycle.

And 1 oz per gallon 1 time a year when we take a long highway trip.

Everything i own loves it
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#4497047 - 08/24/17 02:23 PM Re: Can I use MMO every fillup? [Re: kschachn]
2012AccentSE Offline


Registered: 10/08/13
Posts: 407
Loc: TX
Originally Posted By: kschachn
Originally Posted By: 2012AccentSE
How often do you use it in the oil? Will there be any switching effects from going from UCL to MMO?

What effects do you see now that might be affected?

I actually get a 1-2 mpg increase. But I guess what I like is that Lucas is mainly a UCL vs MMO that actually has solvents. Im just a little OCD thinking that adding extra solvents every fillup will cause issues.
_________________________
2008 F150 KR 5.4L 3v
Left over oil mix...
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2010 Corolla 1.8L
Mobil 1 5w20
Toyota OEM

2014 CFMoto 650NK
Rotella T6 5w40
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#4497058 - 08/24/17 02:35 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
Cujet Offline


Registered: 02/15/03
Posts: 7164
Loc: Jupiter, Florida
As many of us know, anything you add to gasoline will, to some extent, end up in the oil. Products that partially or entirely evaporate are not much problem, for obvious reasons. However, if over an Oil Change Interval, one adds a few quarts of MMO to the gas, a more than negligible portion of that will end up in the oil. How much depends on the engine, the ring sealing, the quantity added and the OCI length. I'm not sure partially burned and contaminated MMO does wonders for the oil.

I will admit, my 2003 Jaguar X-Type runs significantly smoother "if" I add MMO to the gas. I was having trouble with a rough idle, added some MMO and absolutely noticed the difference in MPG and smoothness. However, it did not fix my rough idle, which was due, at least in part, to a vacuum leak.
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#4497097 - 08/24/17 03:28 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
Adding MMO to the oil is something I would never do.
You only dilute good oil or ruin great oil.

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#4497102 - 08/24/17 03:31 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
Wolf359 Offline


Registered: 04/27/12
Posts: 4774
Loc: MA
Originally Posted By: 2012AccentSE
I've been using Lucas UCL for a while now, but I see that I can save about 8 bucks a gallon if I buy MMO (23 bucks for UCL and 15 for MMO). Will there be any negative effects from using it in the fuel primarily? I used UCL everyfill up with no issues. Can I expect the same with MMO?


You can save even more money by not using it. Many people here don't use any additives and are also fine. Got over 200k out of my last car, never any additives. The transmission finally died, no issues with the fuel system even using cheap gas stations. Used my savings on a Mercedes.

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#4497132 - 08/24/17 04:10 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
Dallas69 Offline


Registered: 02/11/14
Posts: 1664
Loc: Texas
Why would you want to ?
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#4497146 - 08/24/17 04:36 PM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
andrewp1998 Offline


Registered: 10/18/08
Posts: 853
Loc: MA USA
I been adding seafoam mainly and some other products to clean carbon on pistons for past several months, seems like my oil goes down a bit faster? Does this stuff dilute the oil? its everytime i fill up.



Edited by andrewp1998 (08/24/17 04:36 PM)
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#4497595 - 08/25/17 08:50 AM Re: Can I use MMO every fillup? [Re: 2012AccentSE]
Bgallagher Offline


Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
To be honest I would just use top tier fuel. MMO is old school and something I wouldn't really use outside of small machines.
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#4497649 - 08/25/17 10:26 AM Re: Can I use MMO every fillup? [Re: andrewp1998]
Cujet Offline


Registered: 02/15/03
Posts: 7164
Loc: Jupiter, Florida
Originally Posted By: andrewp1998
I been adding seafoam mainly and some other products to clean carbon on pistons for past several months, seems like my oil goes down a bit faster? Does this stuff dilute the oil? its everytime i fill up.



I would guess yes.

I own a Cessna aircraft, powered by a Lycoming engine. I use 100LL Avgas. The engine currently has 550 hours since overhaul. Upon propeller removal, I am amazed by the incredible amount of lead deposits in the crankshaft to prop area. If anyone ever had the idea that oil is not contaminated by the fuel, the POUND of lead I removed clearly says otherwise. Sure, most of the fuel is burned. But some percentage coats the cylinder walls and is carried into the oil.

The use of any fuel additive will contaminate the oil, period.

My advice: Use the highest quality fuel, use a quality name brand oil, change regularly. Solves many problems. In some engines, synthetics are necessary (such as Toyota sludge and piston ring issues) . Also, the oil change is the only way the contaminates are removed. Quite simply, many oils remain in grade over a long period of time. But contaminates continue to accumulate.


Edited by Cujet (08/25/17 10:26 AM)
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#4498067 - 08/25/17 07:14 PM Re: Can I use MMO every fillup? [Re: Cujet]
andrewp1998 Offline


Registered: 10/18/08
Posts: 853
Loc: MA USA
I have been using syns for a along time, but had carbon on piston heads, clean top end and valves, but just the piston crown. ill see hat happens when I just add it before an oil change versus every week.

thanks
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2001 Honda civic HX vtecE- 5 spd,230k+

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