Mine runs about 13.5 at 70-75 towing a 9500 lb. 5er (Atlanta to PCB, FL- pretty much like mercman1). Empty is 16-18 city (
if I keep my foot out of it) and as high as 22-24 on the highway (
if I keep it at 1900 rpm- about 70 mph) but it's hard to do if you run with the flow of traffic.
Mine is stock down to the tire size and I'm considering going with a taller tire to lower my rpms on the highway. I had thought about a tuner from a mileage standpoint but everyone has a different answer (other than raising HP and torque
).
Tim