Marathon Road Trip Mpg

[2017HD]

I just completed a two day 700 mi marathon (for work) Drove on just about every type of hy from 65 and 70 MPH interstates to 45-60MPH two lane backroads that included passing at 80+ as well as lots of rolling hills, a few small mountain passes and elevations from just above sea level to 4000 ft. I was able to hand calculate my MPG and was when it came out just under 16 MPG. The DIC showed the AVE to be 14.1 (I did not reset it before starting - besides I think it is working on some sort of accumlated miles and gal as it always seems to "settle in" to between 12 and 14 even after a reset.

 

I did not always use cruise, and in the mountains I often ran in M and used the tap shifter to control the speed - esp on downhills. I also tried to keep the RPMs up around 2k or above which seemed to make hills easier to climb.

 

I also found the seats to be very comfortable and the LT2 cabin quite nice on the long haul.

 

BTW for those of you in the Pacific Northwest I traveled out I84 from Portland to Hood River then up HY35 to 26E to Madras then back to I84 via 97/197 then west on 84 to I205 N to I5N to Tacoma and Puyallup- this was all on one day. Day 2 had me on Hy512 so to Eatonville, Hy7 to Elbe to Morton then 12W to I5 and back to Portland.

[dewfpo]

gasser I assume?

 

DEWFPO

[robertbick]

That's pretty good. I just had my first hwy trip in mine, Upstate NY to Boston, MA and back. A 400 mile roundtrip I averaged 15.1 on the DIC which included a little bit of city driving (about 40 miles). I did reset the DIC and it does start from scratch because right after I reset it, I was traveling down a hill and the AVE was very high.

p.s. Mine is a gasser

[2017HD]

Yes my truck is a gasser - 2007 NBS 2500HD 4WD, 4.10 Rear gears, 6.0L 6spd. I also have a cab high Leer Canopy.

 

Yes the AVE MPG seems to reset, but very quickly settles in to just about where is was before the reset.