Actually, being a cheapskate, I'm now using the cheap twostroke oil from Walmart, that Ed mentioned.
I do sometimes mix that with MMO, about 1/4 to 1/2 gal per gal of the twostroke oil.

Oil to gas is still about 1 oz per gal, maybe slightly less.
Maybe I should stop entirely mixing oil in the gas until my apex seals have worn in :)

In my mind the real question is: what will lubricate the gearbox the best: MMO or  twostroke oil?
I've already drained close to a quart from the sump, and only been running less than 50 hours from last oil change.
So by the time I reach my 75 hour oilchange mark (Mobil 1 synthetic), I guess I'll be running about 10% MMO/ twostroke oil in the sump.

As for Paul Lamar's test, I'm not sure how valid that is. When we were running just MMO both Tracy and I both found the belly of the plane covered with remains of MMO, indicating that at least part of the MMO does not burn and is expelled with exhaust gasses.

Finn

Russell Duffy wrote:

Seriously, Tracy has used this stuff for more hours than anyone has used 2-stroke oil.  Heck, I believe Finn uses it too, and he just hit 500 hours.  Can't recall what Ed uses.  The stuff works, and it's impossible to argue with that.