Brian Johnson

Thank you for the information, that really helps out. I run a 380 c12 in an 03 Pete now, only get around 5 mpg or so. I haul 80000 25 to 35 miles one way to the grain processes plant then return to the elevator empty, normally get 4 to 5 loads a day and run on average about 60 mph. With 4.35 rears in the mack I'm looking at, wasn't sure what kind of mileage to expect. I appreciate the information and any other tips or insight would be appreciated as lwell.

I'm looking at a 2006 CHN 613. Has 460 with mack 13 spd 4.35 rears 24.5 tires. Not real familiar with this set up wondering what kind of mileage to expect and what to watch out for with the aset engine. Local grain hauling is what the truck would be running.