MPG's in Intermodal

I get on average 4.5mpg running boston. 550 hp c15 4.11 rears with an 18spd, 24.5 tires. Doesn't help it's double framed with a wet kit.

 

I get 6.5-7 mpg 12.7 Detroit 550hp, 18 spd, 3:58 rears tall 22.5 also its a classic. I gross between 85,000- 93,000

 

I run wis, IL, in, mi. I stay between 60-65mph.

 

2005 9900i 375 isx 13 370 5.8 6.8 22.4 tand step USA CDN lanes

 

I did my first full tank to full tank fill up. I got 7.7 mpg. 2004 international 9200i with 10 spd, governed to 60-61 mph, 435 HP isx.

I normally work night and do loads over 100 miles and carry an empty back can.

 

I got a 2000 FLD 112 day cab: currently no roof fairing, C12 410 hp, 3.90s, 10-speed, 11R22.5 recaps, drive 55-60 mph, 50%+ MT, out of Bethlehem, PA (hilly), 6.75 mpg