Fuel milage increases with more acceleration.

[Skydiver]

Has anyone noticed the same increase in fuel milage that I have noticed.

When driving while just barely feathering the accelerator up to speeds of 53 mph the truck was getting 18. 3 to 18. 8 MPG. Now i accelerate a little harder just enough to spin up the turbo(more air) and the mileage has jumped 22. 3 to 24. 2 average. Does this sound right?I don't think we have winter fuel changeover in Alabama.

I drive on county 2-lane 45 mph back roads mostly.

Just got to love those Cummins!!!

Tim

 

[dvieira]

driving back home from B. Kondolay shop in Canada,

to my home in the S. F. Bay area, 953 miles, on

cruise control/70mph/ac on/2 fuel stops/

average 23. 2mpg, to me that's awesome !!!

 

[Kodiak]

Skydiver,



I've noticed this phenomenon you mentioned, too: slightly harder acceleration gives better mileage. Seems that more boost would require more fuel, but there must be a sweet spot that gives best mileage.



Years ago, an old diesel dog told me the best way to drive a diesel was to hit it hard to get up to speed. That probably was pre-turbo days.



Maybe somebody who understands this concept can clear it up for us?