MMO in the oil?

[cdlong]

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?

[R Bedell]

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.

[cdlong]

Thanks Roland, I'll try that.

[jimbob200521]

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!

[rwairforce]

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

[jimbob200521]

Originally Posted by rwairforce

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