What do you get for fuel mileage

2015 Volvo 780 D13 iShift. 7.5 no matter what.

 

2000 W900 6nz cat 550hp. 13 speed 3.77 rears lo pro 24.5 rubber. Pull double hoppers PNW. 105500 lbs. 4.25 mpg. Run 70 75 mph. 1600 - 1700 rpm.

 

379 midroof 550cat/13
3.70s and 24.5 pulling mountain flatbed at 80k left lane. 5 to 5.5

 

1999 Volvo vnl, 3406e, 475 hp, 13speed fulton... Between 5.5-6.2 miles /gallon with 40k-43k heavy load .

 

any 500 horse engine pre emission and 335 gallon useable tanks of fuel (345 volume capacity) I expect at best 2150 miles range loaded at 65 as a team OR 1650 solo with a limit of 1950 at 72 mph loaded.

Once I was very careful due to Fleet Orders from Operations not to fuel in California while coming south from WA to AZ that turned into about 2200 miles with a couple of gallons left when we finally found fuel on site in AZ. I was very conservative in applying horsepower most of the way. For me that was about the best you can do in those days.

Once in a while in season, about this time of year to Summer, storms in Eastern Colorado Western Kansas eastbound pushing on trailer like a sail will create close to 20 miles per gallon for hundreds of miles if managed carefully. Thats a bonus.

This is with no consideration to shutting off. We idle all the time.

 

2017 w900l isx15 475/1650 3:36 pulling a train Rockies at 117 in nv and ut 5.1 mpg at 75mph

 

Slow down i'm governed to 65mpg(Ontario law) but i drive slower mostly around 62 mph/100kmh ,flat roads Great Lakes to Texas.I get around 8 mpg even with max load 80k gross during winter and high 8-9+ light under 20k in my 2010 780 D13/13 Eaton. D13 is excelent for fuel economy, I own 2nd volvo 780 with D13 since 2007, both great mpg, plenty of power, but are eating more injectors than fuel.

 

2013 Volvo D13. Averaged 7.3 mpg yesterday overall on about 500 miles. 41k load in an ungoverned truck but I kept it at about 62 to see what I could do fuel wise.

 

2005 Freightliner BSX C15 ACERT.
Rockwell 46,000, 4.11 gears.
18 speed.

Previously, 475 hp, 1,850tq
Average 3.5 cnd mpg with a loaded B-train, end dump, live bottom and low boys.

Now 575 hp, 2,050tq
Ave 5-5.5 cnd mpg with a loaded b-train.

1998 Ford Louisville. 6TS 3406 E
Rockwell 46,000, 4.11 gears
18 speed

475hp, 1,750 tq

Ave 4.5 cnd mpg.