17.7 ave MPG for the Titan Cummins?

[Diamondpilot]

I have checked all my vehicles with a gps and at 65 mph I have never seen more than 2 mph off.

Chris

 

[aczlan]

I have checked all my vehicles with a gps and at 65 mph I have never seen more than 2 mph off.

Mine can be 2-3 MPH off depending on the tires.

Aaron Z

 

[tungularafishcamp]

With my winter tires on according to the gps I am close to 8 miles an hour off the odometer.

 

[farm boy00]

Mine can be 2-3 MPH off depending on the tires.

Aaron Z

Yes and some times more. With our diesels going from 265 to 285 at 70mph we run average 5mph higher. The mud truck with 35s runs at 70mph 10mph higher