RE: DLE-20 Gas/Oil Ratio ?
I got a DLE20 in a Dragonlady. I've run about a gallon through the engine using 32:1 fuel with ash-less oil. Its kept on the rich side. Its turning a16x8 Master Airscrew prop at around 8200rpm and idling around 2000. Plenty of power, the throttle response has gotten better and better with every tankful. I have a 10 ounce tank in the aircraft. I fly 10 minute flights normally and always have plenty of fuel after landing. The one thing I did notice was the DLE20's idle will be high when coming in for landing. I have found that giving the throttle a quick burst allows the idle to return to normal. Great little engine, but do take the time to break in the engine first.