MMO in Mower Gas

[Boomer]

Just thought I'd pass this on for comments. I bought a Snapper self-propelled mower earlier this summer and mow about an acre with it. After break-in, changed the oil to Rotella 30 wreight and have been mowing on this all summer. After break-in, I could repeatedly mow about 7/8 of the acre and run out of gas. I'd add and finish the job.

I ran out of mower gas in my two 3-gallon cans and went and refilled with the same gas...Shell 89 octane but this time I added about an ounce of MMO to each two gallons of gas (along with Stabil that had been in before). When I mowed today, hopefully for the last time, I did the entire acre and a good section of the neighbors street to sidewalk area and still had enough gas in the mower so I could see about 1/2" left in the tank.

I was, needless to say, impressed with this. Any one else see this kind of improvement with MMO in mower gas?

 

[Jimmy9190]

Yes, I add about the same dose to my push mower gas and I have a little more left over in the tank with MMO added than I did with gas only.

I add MMO to the oil in my mower too. Seems to run a bit better and quieter.

MMO is a good product. I use it in the gas for my truck too, at the 4 oz. to 10 gallons dose. I get a little better MPG with it than without.

 

[amr40509]

I haven't tried MMO - but I do know that this time of year my grass isn't nearly as thick/plush as it is during the spring/summer. When I'm mowing thinner grass, I burn less gas as the mower isn't bogging down at all, it's just crusing.

Same reason I burn less gas when my blade isn't dull, and my air filter isn't full of crud.

That said, I HOPE it turns out you are right and MMO helps usage a bit, as my yard is right on the borderline of being a one tank job and would love to have a little advantage to ensure that it always is.

 

[gathermewool]

How long had the cans of gas been sitting before use? Maybe break-in combined with stale fuel?

I guess the only way to know is a few back-to-back mowings next year with and without MMO.

 

[gd9704]

Every time I have to refill my 5 gallon OPE cans, I dose them with 2 oz. of Stabil and 2 oz. of MMO. Seems to keep everything clean and fresh. No complaints from any of my OPE engines as yet!

 

[Boomer]

Actually my grass was quite thick today as I have not mowed for two weeks. And my fuel was not really stale as I use it for a lot of other things so it only ever sits around for about a month. The gas in my truck tank gets older than that a lot of times.

I'll have to keep an eye on this next year. I have not sharpened the blade since I bought the mower and it is getting to the point where I'll be doing that when I put it away for the winter.

 

[flatlandtacoma]

Maybe the engine is just finally broken in? I never noticed a drop in fuel consumption, but it has been a long time since I didn't have MMO in my 5 gallon gas cans. It seems to keep the carburetors clean and the gas from going stale.

 

[Bror Jace]

Used to run MMO in Dad's OPE (mowers, tractor, wood splitter, snow blowers, etc ...). I can't say I noticed any improvement in fuel economy ... but then again, I never measured it.

I use the stuff (and/or Lucas UCL) in new OPE engines as they break in. I believe that it seats the rings slower, more gradually ... but they form a better seal and gives the engine best-possible power while reducing engine oil consumption.

I did track MMO use in one of my cars ... tracked an improvement of about 5% over a few tankfuls, before and after treatment.

 

[CharBaby]

Both MMO and Sta-Bil have the same requirement for adding to fuel, 1oz-2.5 gal/gas or 4oz-10 gal/gas. I do both for my lawn equipment and my old Firebird V8 4bbl carb. They all seem to run best this way.

 

[severach]

I suspect my OPE is more efficient with MMO but for as little as I use in a season efficiency doesn't matter. What I really like is that the continuous dose of MMO keeps the engine running and starting like new. I put my additives into the gas cans so everything gets it no matter who is doing the work.