I live near Denver. My Pontiac (below) runs cooler and gets better gas mileage only in the mountains, on high-octane gasoline. I think this has to do with the ping sensor and timing retarder.
Is there a way to configure a gauge that reports timing advance, on a modern car where it’s varied by the computer?
Enjoyed your radio program, and now column, maybe for decades.
George (no last name)