interesting stuff.
another note about diesel and gas, even though diesel claiming to use more... it can sit and vibrate on heavy duty applications with no loss, and HUGE work in comparison.
a pinhole in a gas tank drops a car by tens of mpg, and odors everyone around it.
It is kinda like the lose weight for efficency, all while not using enough resources to make a perfect boxer engine for the heavier car, for more passengers, and more chores, and comfort and durability by decades over the rest...one big puny mind we are owned by...called marketing.
woops. I started ranting.