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Finn Lassen wrote:

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.

 

 

I have missed something here!  I understand that Finn is draining oil from the engine oil sump because the volume of oil in the sump is increasing over time?  If two cycle oil is mixed with the fuel it should burn, if it is injected into the rotary housing it should also be burnt.  How is the Two Cycle Oil getting into the engine oil sump?

 

Bob Perkinson