Flatbed MPG

Yep.. Believe it or not my worst MPG loads are 7000 # insulation loads...

 

Wow I'm struggling to get above 6 at times. I've had quite a few in the 5.5-5.7 range lately. T800 500 hp Detroit, 3.55s, 22.5lp caps that need to go. I run at 59 mph in 12th gear. Engine is healthy put down good power, oil samples good, New cac and recent valve set. I have a fulltilt manifold that needs to replace the leaky stock one. I also run primarily mb, nd, mn, wi, ia, and il.

I've had a few tanks above 7 but I'm probably averaging 6.2 or so. Haven't had this truck long enough to get a good idea.

 

I get my best fuel economy with 40k lbs of steel that is about 4 inches shorter then my step then 10k lbs of pipe

 

Average 5.8mpg
Highest: 8.2mpg(empty)
Lowest: 3.2mpg


2013 international prostar+
435hp maxxforce
10 speed eaton/fuller
2.90 gears
48' spread axle standard flats


I run 64mph everywhere, foot to the floor. If I set my cruise then the sensor on my bumper hits my brakes. So I don't use cruise control

 

2.4mpg lol 2012 kenworth t800 525 cummins 4:10 18spd pulling a loaded tridem at 68mph

 

Geez! Lol

I thought mine sucked

 

i run about 1600rpm at that speed. im sure winter fuel doesnt help either

 

Yeah true. I run 1350rpm but still crappy

 

Kinda cheered me up after reading all these. My 500 detroit gives me 5.2 loaded, empty, uphill, down, sideways. Still better than my last detroit, 4.8 all day long. It always leaves me scratching my head when people are on about the great mileage they get.