90+% is driver, foot in and making miles to earn more payroll is less economy.
Only in a few cases like yours. Max logged miles with breaks legally is 660, with a 53 to 54 mph average to
stay within mph average between scales. Cruise control has to be used anytime it can. The more tired a
driver gets the less consistent he or she is. Any company fleet only has maybe 5 percent that don't herd
their truck. And there are no two trucks that run the same, we've had drivers move from one truck to
another their fuel mileage didn't stay the same it went up.
Out here the constant grades from Pendleton Ore to Ontario Ore tells the story. Since we went to AMT
gearboxes in the Cascadia's the mileage has been consistently higher than any we have had with
manuals.