2024 Peterbilt 389 Mpg Comparison

2024 Peterbilt 389 Mpg Comparison. The long answer, which follows, is the 389 retains all that’s good about the 379, while making the best of the chassis modifications required to accommodate the new engine. 78 peterbilt 389s have provided 3.3 million miles of real world fuel economy & mpg data.

He bought the rig out of lethbridge, alberta, canada. Known as one of the most powerful tractors on the road, model 389 amassed.