Starting to use MMO in fuel

[ThirdeYe]

I just bought a 16oz. bottle of MMO at the Dollar Store for $2 and some change, after hearing about it on here lately. Anyways, I put 2oz. in my fuel tank (it's half full right now, about 6 gallons in the tank) and I'm going to follow the directions of having 4oz. per 10 gallons until the bottle is empty. I've been running LCD Fuel Power products since I got my car but I stopped a few months ago because I ran out.

Anyways, what can I expect (if anything) in running this? Has anyone else noticed anything positive after using MMO in their fuel?

 

[CourierDriver]

i have used it in the past, couldn't tell much difference, and I use stabil too for water removal, cleans out the carb and injectors on my throttle body dodge

 

[Turk]

If your needs it, you'll notice a difference. If everything's tip-top condition, probably not as much.

 

[river_rat]

Originally Posted By: ThirdeYe
Anyways, what can I expect (if anything) in running this? Has anyone else noticed anything positive after using MMO in their fuel?

I did this for 2 years religiously, and I can't tell any difference.
Prolly don't hurt though.

 

[Jimmy9190]

It should help the engine run quieter and improve cold starts. The UCL properties should help increase compression and power. It may or may not help improve MPG. I add it at every fuel fill 4 oz to each 10 gallons and it really helps my truck run smoother and it has more power on MMO. Adding it to your oil will help the engine too.

 

[Avelectro]

Both my wife and her sister use MMO at the rate of 8 oz per 12 gallons of 87 octane. Both ladies swear it gives them more power. My wife drives a 2004 MPV and her sister drives a 2006 Mazda6s and they have similar engines, the 3-liter Duratec.

I drive an RX-8 and I use from 1/2 to 1 oz per gallon of 91 octane gasoline. More than recommended, but the higher the ratio, the more powerful my rotary feels.

None of us has seen a noticeable difference in fuel economy. Not that any of us care that much about mpg, however - if we did we would be driving not-so-fun vehicles

 

[ThirdeYe]

I don't care too much if it increases my MPG or not, my driving style doesn't usually allow me to get optimal gas mileage... I try to get good gas mileage, then get bored and let my foot have some fun. I still typically get high 20's/low 30's depending on where I'm going, which is good enough for me. My motor has always been kind of ticky, especially when it's cold so we'll see if I notice any improvement.

 

[MONKEYMAN]

I am interested in your results. I am using FP3000 (1 oz per 10 gal.) and have about 1 pint of MMO mixed with my oil. All I know is my car has never had as much pep. Starts instantly. Smooth idle. Plenty of power. That is with a '99 SL2 Saturn. I was trying to calculate. Seems that the FP3000 is cheaper to run, but you are using less product. So, using more MMO per gallon may account for differences you may experience.

 

[Jimmy9190]

MMO may help the engine noises, and provide increased compression and performance too. But if your car is like my truck was, you will need to use it for a while. You may not get instant results from the first few doses of MMO in the fuel. It took about 4 or 5 tanks before I noticed any gains from it.

 

[JustinH]

I'm not noticing any difference at all using it in the gas in two different cars, both GM ecotec powered.

 

[Capa]

I also haven't felt any real difference in my two vehicles. Basically any fuel you buy already has additives and so I fell this is a waste of money. Once a year I might use Regane or whatever, but definitely not every fill-up like some here. Also, I haven't put any MMO in the oil but if you are using a good synthetic, again, this is more than likely a waste of money.

 

[mechtech2]

Gas mileage gets better for some, also a bit more power from better ring and valve sealing. A nice plus if you get an increase!
Wear on parts is reduced. From the pump to the injectors, to valve guides, to cylinder bores/rings. At least, better than just alcohol/gas.
Many DO notice a better idle - smoother. This could be from a bit of injector cleaning, combustion chamber cleaning, friction reduction in the valve guides and cylinder, and better valve and ring sealing. This is also what MAY give a bit more pep.
So you may or may not feel anything.
I personally use it for the fuel pump lube qualities, and some cleaning, whether or not I feel anything.

 

[Jimmy9190]

^^^^^ +1 on what Mechtech said. I get the same benefits from MMO in the gas. MMO in the oil helped my engine a lot too. Much quieter running and smoother idle with less vibrations.

 

[Vizzy]

If you have a decently maintained late model car there is nothing good that comes out of using such a snake oil in your fuel. Most car mfrs recommend AGAINST anything like this.

About the only worthwhile products are bottle FI cleaners that contain high levels of PEA detergent in them (30-50%) They actually DO clean and are SAFE as well. You're risking possible degradation in performance or damage by using anything else except gasoline or approved safe cleaners as mentioned above...can't say I didn't warn you.

 

[Avelectro]

Originally Posted By: Vizzy
If you have a decently maintained late model car there is nothing good that comes out of using such a snake oil in your fuel.


I disagree. If I notice the use of MMO resulting in an improvement of any aspect of my vehicle's operation, I feel justified in using it and will continue to use it until I find some detrimental effect.

 

[Vizzy]

Originally Posted By: Avelectro
Originally Posted By: Vizzy
If you have a decently maintained late model car there is nothing good that comes out of using such a snake oil in your fuel.


I disagree. If I notice the use of MMO resulting in an improvement of any aspect of my vehicle's operation, I feel justified in using it and will continue to use it until I find some detrimental effect.



"feel" is the operative word.

It is almost certain that there is no "actual" measurable improvement in operation at all. Not only that over time you may be creating a measurable DECREASE in performance of operation...it too may be too small to notice but why chance it? I can tell you that the engineers that designed your car know better than you when it comes to using such products. If I were you I'd take their advice and stop using such additives completely unless they are approved.

 

[Ursae_Majoris]

Originally Posted By: Vizzy
Originally Posted By: Avelectro
Originally Posted By: Vizzy
If you have a decently maintained late model car there is nothing good that comes out of using such a snake oil in your fuel.


I disagree. If I notice the use of MMO resulting in an improvement of any aspect of my vehicle's operation, I feel justified in using it and will continue to use it until I find some detrimental effect.


"feel" is the operative word.

It is almost certain that there is no "actual" measurable improvement in operation at all. Not only that over time you may be creating a measurable DECREASE in performance of operation...it too may be too small to notice but why chance it? I can tell you that the engineers that designed your car know better than you when it comes to using such products. If I were you I'd take their advice and stop using such additives completely unless they are approved.



I disagree. My Isuzu Axiom has very well maintained--oil changes every 4 months (about 2000 miles, all in town). Long-term average for winter gas usage has been about 12 MPG (including extended warm-ups in Alaskan weather). This winter it is staying at 13.4 MPG. Similar for the summer usage. I was hard pressed to break 15 MPG, last summer it was over 16 MPG, consistently, IIRC (do not have spreadsheets on this computer.)

 

[Capa]

I've had the opposite experience with MMO in the fuel tank and posted about it about a week ago. My 2006 Dodge Grand Caravan has lost about 1 MPG.

My Lexus GS400 has noticed absolutely no MPG gains. The butt dyno cannot be trusted; more than likely you are falling for the placebo effect. My Lexus feels exactly the same with or without MMO---it isn't smoother, faster, stronger, has a better cold start, etc. I know that some people do see gains, but let's not hide the fact that many don't. Sometimes I wonder how many MMO salespeople lurk here.

 

[Rand]

there are no MMO salespeople.. its sold at chain stores.
a quart runs about 4$ or so.
I do think some of the claims are exaggerated, but its hardly "snake oil" product..

that goes more to products such as ZMAX and slick 50

 

[Turk]

Quart is $2.99 at Menards this week!