I think I've improved my mpg by using a form of pulse and glide where I accelerate at ~32 TPS (automatic...16 TPS at idle)...then try to coast into stop signs or curves from maybe 45-50 mph to around 30-35 mph.
* Oval represents the 32 TPS range...around 2500 RPM. 35-36 TPS and 3000 RPM might do about as well..but would involve more trans power loss.
The two other marks.....the lower one represents cruise at 50 mph or so and the middle one is accelerating at around 2000-2100 rpm. Converted from actual LOD and RPM numbers.
I'm pretty sure that by doing this over a 1/2 mile distance I can maintain my avg mpg figure. What mpg I lose on acceleration...I regain on coasting.
But I can never approach the mpg I could see with highway cruising....33 mpg vs +40 mpg?