MMO in the oil?
 

I just changed the oil and added MMO. The bottle says 20% MMO. I haven't ran the engine yet because that looks like too much MMO to me, especially in an older high hour engine. The oil is straight 30 wt. Your thoughts?

I have done it. My intended purpose was to de-sludge the engine. Ran it for a few hours then I changed the oil. I had no issues.

Thanks Roland, I'll try that.

For what it's worth, at least in our small engines, I wouldn't make a habit out of running MMO regularly in either oil or fuel. I used to run a small amount of MMO in every drop of gas that I put into my machines. Now, however, I only do it once every couple fillups. As far as oil, as Roland said, at least in my opinion, I'd only run it for a short time to clean things up, not a permanent additive. I'm sure others will have thoughts on this and that's what makes this country great! :biggrin2:

Jimbob,
What problems did you experience running it in the fuel? Does it cause problems over time?

I never had problems directly related to the MMO. I had an engine that smoked, it cleaned up a bit after it was switched to straight gas but there were other problems with the engine to begin with. Like I said, I still use it, just not as frequently. I talked to a couple knowledgeable guys on the subject and the census seemed to come to "why make gas, less gas"? Additives are great, if they serve a purpose. If I was starting a machine that had been sitting for a long time, sure, I'd add some MMO to the gas and a touch to the oil to help clean things up; ya know, add a little of the "MMO Mystery Touch" to the internals and the carb, so to speak. But to add it just to add it, nah. Engines were designed to run on gas, and gas is what I'll give them. Keep in mind, that's just my :TwoCents: :beerchug:

I was not a fan of oil additives, until this summer.

My ATV (2 cycle) seemed to be running hot due to lack of sufficient oil injection, but, now I believe the machine was running hot due to the weather, it was a VERY hot day.

I added extra oil to the gas, in effect doubling the amount of oil.

The machine began running incredibly cool!! :bigeyes:

http://i1104.photobucket.com/albums/...psaa52d96a.jpg

I am still running the extra oil.

Before you ask, I added the antenna to cut the spider webs that are so prevalent this time of the year,,,, :bigthink:

A couple of thoughts. Gasoline is what has a cooling effect on engines. When the liquid vaporizes it cools. Oil does not have this direct cooling effect. Second, if your adding additional oil to the fuel you are in effect leaning your fuel mixture. Carb jets only flow a finite amount and more oil in the gas means less gas as a percentage is flowing through a fixed jet. Be cautious as we all no what an overly lean two stroke does. If additional oil created a cooling effect, it was because you had inadequate lubrication to begin with and were experiencing increased heat from friction.

I'm not really into what you are saying. You make some interesting points...... but I disagree with most of them. :coffee:

I use about 3/4-1 ounce of MMO to one gallon of gas in my 1250 Nightmare. I also use an ounce of StaBil per gallon of gasoline. A good friend, who is a small engine mechanic claims that we need a bit of upper cylinder lubricant to replace the lead that was once in the gas when our Kohlers were built. (sounds good to me) I don't notice any smoke with the MMO in the gas, the engine runs great, the spark plug is very clean and is wearing evenly, and I don't need to drain the gas when the machine is parked in the winter.

I started with 4 ounces per gallon, and that was way too much. the one ounce cleaned up the exhaust and made the engine run better. I am sold on the practice.