Are you a Big-Rig Hypermiler ?...

[Bigboyt01]

I worked with U S Xpress in a 2016 International prostar sleeper with the isx 15 and auto transmission. I personally put 180k miles on that truck and not once did I break down and didnt know why until Rawse said it in his video. I made that truck get on it every where I went and back down once I was back flat when I went up a hill 1800 rpm was where I was and manually shifted it I didnt pamper it nor was I abusive you find that right spot with a diesel. I averaged 9 to 10 gpm as a company driver. You might say bulls### but a lot of what he said is the truth. Maintenance and how you drive it determine a lot. Thank You Rawse for your insight on the cummins isx and will continue to be a member.