are nothing short of amazing! Reason #34,507 why I love mine. Made about 120 mile trip towing a Bobcat E45 mini excavator. Excavator and trailer weight was around 16,500lbs. Mostly interstate. These trucks just go! My 6.4 would have been around 8.5-9 mpg pulling that weight.

 

Good report!! Thanks!

 

Beware of the computer fuel mileage, mine is always about 1.5 to 2 mpg higher than actual when I hand check it.

 

Mine is usually really close. The MPGs and the Gallons Used are both fairly accurate.

 

Same with mine. Most discrepancy is couple tenths of a mile.

 

Mine is typically within .1 MPG of hand calculating..

 

Go figure, mines always read hi, so did the 08. Both consistently about 2 MPG high. Now the 01 was right every time. I could amaze my wife by predicting almost to the half gallon what it would hold at refuel. Anyway, if you are getting 10.3 towing that weight you're doing better than mine. I no longer check mine. Just drive and pay the bills when they get there.

 

try to change the fuel mapping. I forget how but you can specify towing and that should help. Mine is pretty close that way. Maybe it is called fuel calculations.


Think it maybe in the settings.

 

my hand calculated actual is consistently 1.0 to 1.5 mpg lower than what the lie-o-meter says.