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MMO vs TCW3 as a fuel additive #1429603
04/09/09 07:47 AM
04/09/09 07:47 AM
Joined: Jul 2005
Posts: 30,623
NY
demarpaint Offline OP
demarpaint  Offline OP
Joined: Jul 2005
Posts: 30,623
NY
We're looking for people who have used either TCw3 or MMO as a fuel additive to weigh in here with their observations and opinions. Doses, MPG gains or losses, and any other feedback you might have, good or bad. Hopefully there are some members who have used both products, and can weigh in too.

Maybe we can even do some informal testing of our own logging MPG gains or losses, what mix ratio gave the best results, etc. This can be on going since it is going to take a while for the information to hit the board.

TIA,
Frank D


God Bless Our Troops

Re: MMO vs TCW3 as a fuel additive [Re: demarpaint] #1429660
04/09/09 09:06 AM
04/09/09 09:06 AM
Joined: Mar 2004
Posts: 362
Cleveland Ohio
BUBBA0420 Offline
BUBBA0420  Offline
Joined: Mar 2004
Posts: 362
Cleveland Ohio
OK I will chime in first. I use MMO in everything I own added to
the fuel. I use twice the recommended dose which has no effect on
mileage. More than that will reduce MPG. I have used it for 20
years and had the cylinder head off a 1987 cougar 3.8 because
of a blown head gasket (Like thats something new) The piston
tops and valves were unbelievably clean. I also use it to
winterize mixing 50/50 with tcw3 outboard oil

God's Nectar


Those who dies with the most toys Wins
Re: MMO vs TCW3 as a fuel additive [Re: BUBBA0420] #1429716
04/09/09 10:17 AM
04/09/09 10:17 AM
Joined: Jul 2005
Posts: 30,623
NY
demarpaint Offline OP
demarpaint  Offline OP
Joined: Jul 2005
Posts: 30,623
NY
I've noticed the same thing with MMO, it seems an OD of MMO doesn't have as much of a negative effect as TCW3 does. I'm not saying that in a negative way. I ran a quart plus in 20 gallons of fuel with no ill effects that I could notice. I've used MMO in gas a very long time too and only had positive results. I use in in everything, mower, snow blower, line trimmer, power washer, and a small outboard engine, it works very well.

I will continue to run it in the Aerostar and as soon as the normal driving routine for the Aerostar comes back I will track mpgs.

I use it as a fogging oil too, it works great.


God Bless Our Troops

Re: MMO vs TCW3 as a fuel additive [Re: demarpaint] #1429735
04/09/09 10:38 AM
04/09/09 10:38 AM
Joined: Jul 2008
Posts: 826
Iowa
fsskier Offline
fsskier  Offline
Joined: Jul 2008
Posts: 826
Iowa
I used 27 gallons of TCW-3 last year but.......
I ran it all through some Evinrude outboards.
3- 150 hp Etecs
2- 225 hp Etecs
2-225 hp Fichts
1 140 hp VRO, Carbureted.
They all get lousy mileage, despite the use of TCW-3 oil.

Sorry guys, I could not resist!

Re: MMO vs TCW3 as a fuel additive [Re: fsskier] #1429764
04/09/09 11:10 AM
04/09/09 11:10 AM
Joined: Jul 2006
Posts: 2,338
Magnolia, TX
INDYMAC Offline
INDYMAC  Offline
Joined: Jul 2006
Posts: 2,338
Magnolia, TX
I don't know what TCW3 is, but I have used MMO quite a bit as a UCL. It is the only one I have found that will quiet a Honda S2000 valvetrain on cold starts at the recommended fuel/MMO dosage. It doesn't seem to hurt MPG in any way. I don't keep close track, but I'd say it's about the same as no additives.


2013 Toyota Tundra DC 4X4 5.7L FFV
2012 Toyota 4Runner 2WD SR5
2004 Honda S2000
Re: MMO vs TCW3 as a fuel additive [Re: INDYMAC] #1429800
04/09/09 11:35 AM
04/09/09 11:35 AM
Joined: Jul 2005
Posts: 30,623
NY
demarpaint Offline OP
demarpaint  Offline OP
Joined: Jul 2005
Posts: 30,623
NY
TCW3 is oil to be mixed with gas for 2 cycle water cooled gasoline engines (outboard boat engines). It is ashless and meets NMMA TC-W3 standards. There are a lot of people using it as a UCL in their cars and claim increased mpgs, and some other benefits similar to MMO. That's why I started this thread, I wanted to see what benefits if any, other members are seeing using either of these products.


God Bless Our Troops

Re: MMO vs TCW3 as a fuel additive [Re: demarpaint] #1431366
04/10/09 07:56 PM
04/10/09 07:56 PM
Joined: Feb 2007
Posts: 348
West Coast Florida
Shup1 Offline
Shup1  Offline
Joined: Feb 2007
Posts: 348
West Coast Florida
I have used MMO in everything (as well as a shot of Stabil), I cxannot say if it has helped me in any way except for no issues with my boat,lawn mower, pressure washer,weedeater ect

I have been running it in my CTD since new as well as a shot of Power service...I have tried numerous combinations and the best is the 3 oz to 10 gallons (for me)...btw truck HATED TCW3 and MMO mix! mileage went right down the [censored]!


2006 Dodge 2500 CTD / 2007 Chrysler 300 / 2009 Mailbu / 93 F-150 (185k miles and no synthetic oil, bypass filter and it still runs)
Re: MMO vs TCW3 as a fuel additive [Re: Shup1] #1431610
04/11/09 05:57 AM
04/11/09 05:57 AM
Joined: Jul 2005
Posts: 30,623
NY
demarpaint Offline OP
demarpaint  Offline OP
Joined: Jul 2005
Posts: 30,623
NY
I think the TCW3 is some potent stuff, but if you think about it, it has to be. It is the only source of lubrication for a 2 cycle engine, based on that it has to be used in very small amounts in a 4 cycle engine. Interesting the mix of the MMO and TCW3 was NG in your truck.


God Bless Our Troops

Re: MMO vs TCW3 as a fuel additive [Re: demarpaint] #1431645
04/11/09 07:14 AM
04/11/09 07:14 AM
Joined: Aug 2007
Posts: 208
Festus MO
rodinator1234 Offline
rodinator1234  Offline
Joined: Aug 2007
Posts: 208
Festus MO
I use either MMO or TCW3 with every fill up of my 1998 Chevy 6.5td. I use a full quart of either on an empty tank fill (less than a quarter tank). If it's a partial fill I guess at the amount. I can't tell a difference between the 2. I do it to help aid in lubricating the injector pump, 170k same pump so it can't be hurting. As far as a car or motorcycle, I've only used MMO.

Re: MMO vs TCW3 as a fuel additive [Re: rodinator1234] #1431983
04/11/09 02:55 PM
04/11/09 02:55 PM
Joined: Sep 2004
Posts: 7,609
Marshfield , MA
andyd Online content
andyd  Online Content
Joined: Sep 2004
Posts: 7,609
Marshfield , MA
I started using MMO in my small engine fuel. Once I have the engine sorted out and have run a few tanks of fuel dosed with MMO through an engine, it starts easier and I no longer have to tear down the carb to clean out varnish. I have used it on occasion in my cars and have noticed a bit nore pep, but no improvement in MPG


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: MMO vs TCW3 as a fuel additive [Re: andyd] #1432007
04/11/09 03:46 PM
04/11/09 03:46 PM
Joined: Nov 2006
Posts: 270
MA
mez Offline
mez  Offline
Joined: Nov 2006
Posts: 270
MA
I started to use TCW-3 on my 2006 Ridgeline about 4 tankful ago. I have MPG history without TCW-3 since I got the truck with 18K. I will use that as the starting base line. Once I get a few more tanksful with TCW-3, I will report my numbers.


2006 Honda Ridgeline RTL
Re: MMO vs TCW3 as a fuel additive [Re: mez] #1432042
04/11/09 04:38 PM
04/11/09 04:38 PM
Joined: Jul 2005
Posts: 30,623
NY
demarpaint Offline OP
demarpaint  Offline OP
Joined: Jul 2005
Posts: 30,623
NY
Sounds good. What is the dose of TCW3 you're using?


God Bless Our Troops

Re: MMO vs TCW3 as a fuel additive [Re: demarpaint] #1432156
04/11/09 07:34 PM
04/11/09 07:34 PM
Joined: Dec 2003
Posts: 9,843
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,843
Florida, Cape Coral
I'm using TCW3 at a ratio of ~ 1:500 or 2.5 OZ per 10 gallons of fuel in my turbo Mazda. In a good running clean engine, one would expect no mileage increase or decrease. Differences would be lost in the variability of the driver & weather.


CX5 Touring 2.5L :-)
Re: MMO vs TCW3 as a fuel additive [Re: Eddie] #1432176
04/11/09 08:15 PM
04/11/09 08:15 PM
Joined: Nov 2006
Posts: 270
MA
mez Offline
mez  Offline
Joined: Nov 2006
Posts: 270
MA
I'm using 1 oz of TCW-3 to 5 gallons of gas.


2006 Honda Ridgeline RTL
Re: MMO vs TCW3 as a fuel additive [Re: mez] #1432177
04/11/09 08:17 PM
04/11/09 08:17 PM
Joined: Jul 2005
Posts: 3,730
SE PA
Trajan Offline
Trajan  Offline
Joined: Jul 2005
Posts: 3,730
SE PA
Same here.



Lack of harm is not proof of benefit.

There are in fact two things, science and opinion; the former begets knowledge, the later ignorance. Hippocrates




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