Today I decided that when I changed my oil, I would try a quart of MMO. All I can say is wow! What used to feel like an old engine running on its last leg, feels much better. As soon as I started it up, I noticed a difference. The engine was shaking alot (about as much as I would expect a 22 year old engine to shake). After changing the oil and adding MMO, there was absolutely no shaking. So, a friend and I drove it around the neighborhood. The engine sounded/felt/drove so much better. There was even a little more power. I was nervous at first at the amount of smoke that came out, but it was gone within a few minutes (carbon maybe?). It also ran cooler. Usually after letting it idle for 5-10 minutes and driving it around the block, it would get very close to hot, now it doesn't get past halfway. A good deal of the knocking and pinging was gone, but there still is some.

I'm estatic at the amount of improvement I noticed. Hopefully it keeps up. I plan on changing the oil again in 1k miles and also adding more MMO to the gas on my next fillup. And possibly run it through the next oil change.

I'll keep you posted on any changes good or bad.

Neil

 

I was going to recommend changing oil soon since I would guess that the MMO cleaned you engine out, and all the gunk is sitting in the filter. So good that you are planning to change.

I have heard MMO is an excellent solvent to clean the engine. Never used it myself since I use syn and should never have problems with clogging. Your symptoms sound like the MMO cleared up your clogging. I do use MMO as a mix in general purpose lubricant that I use like you might use 3 in 1 oil.

Good Luck,

Jim Henderson

 

Pumped oil into air filter and filled with sludge. Opened the oil filter and it had 1/3 of oil filter clogged with these little black coal like crystals. Cleaned gunk off head with combibation MMO, kero and tranny fluid. Just washed gunk and liquid down oil passages. Ols oil but new filter, drove around with this mix for 150 miles. Drained this oil through an extreamly fine filter screen. Not a trace of sludge or these crystals I found so many of in the first filter. Something cleaned this sludge out.

 

Why not just buy a can of 3 in 1?

 

MMO smells better

 

Don't know. Just read it in an RC(Radio Control) magazine years ago and it seemed like it would be a good idea to try it out.

The RC mag recommended a 50/50 mix of MMC and ATF(tranny fluid) as a good "After Run" lubricant. Afterun is meant to keep small model engines clean and from gumming up while in storage. Since those engines suffer a hot, high speed, high pressure life I figured I would try it for other stuff. I use the mix in electric fan and heater bearings a lot and use it around the house for other simple lube jobs. I rebuild small appliances as a hobby and the mix seems to work fine. The mixture appears to soak into bronze bearings really well.

None of this is scientific, just me putzing around with stuff I have on hand.

I mix MMC and Amsoil(no I am not a fan but saw a bottle on sale) synthetic ATF. Since the MMC in quart bottle and Amsoil ATF in quart bottles make a huge volume of "general purpose around the house" lubricant at relatively low cost I guess you could say I use the mix because I have a large amount and per volume it is dirt cheap as compared to 3in 1, and I like to tinker.

Nothing against 3in1, it's just that I have 2 quarts of the mix which I guess cost me about $12 total, compared to something like a buck for a tiny can of 3in1. BTW I also like the USGI LSA lubricant, have a couple gallons of that. So I probably won't need to buy any light oils for around the house for as long as I live.

Jim Henderson

 

I understand the concept. But I bought a small can of 3 in 1 about 3 years ago and it is only 1/2 gone.

I do use a lot of WD40. I like spraying things rather than dripping the oil on.

 

MMO:
3 in 1:

WD40:

Liquid Wrench:

STP:

 

My favorite all purpose oil is CRC Power Lube, which used to be called CRC 5-56. I think it is much better than WD-40.

 

I'm trying out PB Blaster.

 

I'm pretty impressed with PB Blaster. I first heard about it here on the boards. Been using it on my 50 year old tractor it seems to work better than Liquid Wrench or WD-40 on rusty threads. I havn't got used to the smell of the PB Blaster though For rust prevention or cleanup I still use WD-40.

 

PB Blaster

CRC Power Lube

PB Blaster,CRC and WD40 are 50-80% solvent with only a little actual oil, but the PB Blaster clearly has some different stuff in it that is missing from the others.

 

Alkyloxypolyethyleneoxyethanol! Say that 10 times fast!

I always just used brake fluid.

 

Alcohol, Alcohol, Alcohol, Alcohol, Alcohol, Alcohol, Alcohol, Alcohol, Alcohol, Alcohol.


Glycol, Glycol, Glycol, Glycol, Glycol, Glycol, Glycol, Glycol, Glycol, Glycol.

Absorbs water though. Probably not much good at rust prevention.

 

Interesting that a lot of these have mostly severely hydrotreated heavy naphthenic petroleum distillates. Rislone Engine Treatment is mostly severely hydrotreated light or heavy naphthenic distillates.