https://ecomodder.com/forum/member-a...ed-micro-r.jpg1) If you can get to a cruise velocity and just hold it there, you'll be at your best brake specific fuel consumption.
2) Once you hit traffic, all bets are off.
3) This is why a 'hybrid' version of your van would return 48% higher mpg, according to Emission Analytics, who've tested many hundreds of vehicles for MOTOR TREND Magazine.
4) A BEV version would be about 3.5X higher mpg-equivalent than what you're presently experiencing. And with net-metering, off-peak, you'd be paying $ 0.05/ kWh, or $ 1.97/gallon equivalent. ( that's where I'm going!)
5) In the aero-extreme, towing a net-negative-drag trailer ( empty ) would give you the ultimate in mpg, gas, diesel, or electric.