« on: May 19, 2025, 07:39:57 pm »
I always mix my MMO 20/1 or 25/1 and have also run with no problems at 15/1.
I like having fresh oil coming out through the exhaust.
This tells me with certainty that the engine is getting good cylinder lubrication which is critical with rubber O-rings on the pistons.
Jin provides extra O-rings with his engines however I have never needed to replace one.
Gil
Nor have I, though I'd call it a sure bet that you have more hours on more engines than I do Gil!

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