2014 Peterbilt 386 with MX-13 best I ever got was 7.2 empty with the wind at my back. Loaded 6.2 Never saw 8 mpg and I have 770k on the engine and the entire truck
Paccar mx13 boost
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by insanityeight, May 22, 2018.
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