I’m getting about the same as well. I’m happy with it too.
True for a normally aspirated engine; not as much for a turbocharged engine.
She was a bit breezy yesterday wasn’t it. Got to watch the hood flutter every once in a while.
This. When people mention that manual fuel calculations are more accurate they fail to take into consideration that the pump itself has a tolerance that it works within. Then some pumps are more sensitive to others in regards to the auto shutoff feature.
The more I think about this the less it makes sense. I've been flying piston-powered aircraft for several decades, so I'm very much aware of the effect of altitude on engine operation. You are correct that the computer leans the mixture due to less dense air (we do this manually with a mixture control for aircraft engines), but this doesn't make the engine more efficient, it just reduces power output, and when you make less power you use less fuel. Unless there is some mechanism I'm unaware of, engines do not become more efficient at altitude, they simply make less power because there is less oxygen to burn. This is most apparent during acceleration. Maximum acceleration requires maximum power, and most acceleration testing is corrected to sea level, because that's where the engine will produce the most power.
Great. I’m familiar as well. So you understand what happens when you climb to 10,000 ft without leaning: you’ll lose power as you climb. And when you start leaning: you’ll gain some power back. So you’re gaining back some power and burning less fuel by leaning the mixture to accommodate the less dense air.
