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Can I use MMO every fillup? #4497007
08/24/17 01:58 PM
08/24/17 01:58 PM
Joined: Oct 2013
Posts: 411
TX
2012AccentSE Offline OP
2012AccentSE  Offline OP
Joined: Oct 2013
Posts: 411
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?


2008 F150 KR 5.4L 3v
Milesyn blend 10w30
MC 820s
TCW3

2010 Corolla 1.8L
Mobil 1 5w20
Toyota OEM
Top Tier

2014 CFMoto 650NK
Rotella T6 5w40
CFMoto OEM
Stabil
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497015
08/24/17 02:03 PM
08/24/17 02:03 PM
Joined: Jan 2014
Posts: 500
AZ
leroyd92 Offline
leroyd92  Offline
Joined: Jan 2014
Posts: 500
AZ
Yep. 4 oz per 10 gallons.


Supertech Junky
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497021
08/24/17 02:04 PM
08/24/17 02:04 PM
Joined: Jul 2015
Posts: 127
Alberta
BigJakeChevy Offline
BigJakeChevy  Offline
Joined: Jul 2015
Posts: 127
Alberta
I do in both my vehicles, everytime.


2007 Silverado Classic 5.3L PPPP 10w30 455,000kms
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497026
08/24/17 02:10 PM
08/24/17 02:10 PM
Joined: Oct 2013
Posts: 411
TX
2012AccentSE Offline OP
2012AccentSE  Offline OP
Joined: Oct 2013
Posts: 411
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
Milesyn blend 10w30
MC 820s
TCW3

2010 Corolla 1.8L
Mobil 1 5w20
Toyota OEM
Top Tier

2014 CFMoto 650NK
Rotella T6 5w40
CFMoto OEM
Stabil
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497030
08/24/17 02:11 PM
08/24/17 02:11 PM
Joined: Dec 2005
Posts: 9,890
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 9,890
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?


1994 BMW 530i, 228K
1996 Honda Accord, 263K
1999 Toyota Sienna, 400K
2000 Toyota ECHO, 271K
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497031
08/24/17 02:12 PM
08/24/17 02:12 PM
Joined: Jan 2014
Posts: 500
AZ
leroyd92 Offline
leroyd92  Offline
Joined: Jan 2014
Posts: 500
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


Supertech Junky
Re: Can I use MMO every fillup? [Re: kschachn] #4497047
08/24/17 02:23 PM
08/24/17 02:23 PM
Joined: Oct 2013
Posts: 411
TX
2012AccentSE Offline OP
2012AccentSE  Offline OP
Joined: Oct 2013
Posts: 411
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
Milesyn blend 10w30
MC 820s
TCW3

2010 Corolla 1.8L
Mobil 1 5w20
Toyota OEM
Top Tier

2014 CFMoto 650NK
Rotella T6 5w40
CFMoto OEM
Stabil
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497058
08/24/17 02:35 PM
08/24/17 02:35 PM
Joined: Feb 2003
Posts: 7,425
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,425
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.


People who count on their fingers should maintain a discreet silence.
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497097
08/24/17 03:28 PM
08/24/17 03:28 PM
Joined: Jul 2015
Posts: 3,772
MD
AirgunSavant Offline
AirgunSavant  Offline
Joined: Jul 2015
Posts: 3,772
MD
Adding MMO to the oil is something I would never do.
You only dilute good oil or ruin great oil.

Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497102
08/24/17 03:31 PM
08/24/17 03:31 PM
Joined: Apr 2012
Posts: 5,141
MA
Wolf359 Offline
Wolf359  Offline
Joined: Apr 2012
Posts: 5,141
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.

Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497132
08/24/17 04:10 PM
08/24/17 04:10 PM
Joined: Feb 2014
Posts: 1,714
Texas
Dallas69 Offline
Dallas69  Offline
Joined: Feb 2014
Posts: 1,714
Texas
Why would you want to ?


2009 Galant-ultra oil and filter
1987 Ford F-150 302
Smittys 5-30
Motorcraft filter
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497146
08/24/17 04:36 PM
08/24/17 04:36 PM
Joined: Oct 2008
Posts: 867
MA USA
andrewp1998 Offline
andrewp1998  Offline
Joined: Oct 2008
Posts: 867
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.


Last edited by andrewp1998; 08/24/17 04:36 PM.

2001 Honda civic HX vtecE- 5 spd,232k+
Re: Can I use MMO every fillup? [Re: 2012AccentSE] #4497595
08/25/17 08:50 AM
08/25/17 08:50 AM
Joined: Apr 2012
Posts: 3,159
Boston, MA
Bgallagher Offline
Bgallagher  Offline
Joined: Apr 2012
Posts: 3,159
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.


2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G
Re: Can I use MMO every fillup? [Re: andrewp1998] #4497649
08/25/17 10:26 AM
08/25/17 10:26 AM
Joined: Feb 2003
Posts: 7,425
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,425
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.

Last edited by Cujet; 08/25/17 10:26 AM.

People who count on their fingers should maintain a discreet silence.
Re: Can I use MMO every fillup? [Re: Cujet] #4498067
08/25/17 07:14 PM
08/25/17 07:14 PM
Joined: Oct 2008
Posts: 867
MA USA
andrewp1998 Offline
andrewp1998  Offline
Joined: Oct 2008
Posts: 867
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


2001 Honda civic HX vtecE- 5 spd,232k+
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