Besides being hocked to a tow truck, Coasting, and not going through the drive through. Computer Reprogramers? KN? Air Flow Agitatiors? Narrow Tires? Smearing the outside with Crisco? Get your employies to push? Convert to Natural Gas? Sheet the bottom for better Air Dynamics? Turn on my Electro magnet when behind trucks? Any ideas worth my time or what other spofs have you heard!?

 

I don't have any suggestions, but I have been thinking about the same thing. I have a 2006 Silverado 2500HD 4x4 w/ 6 liter V8, alittle over 2000 miles on the clock and get 9.5 in town and 13.5 on the hiway.
If I may ask, what have you done that didn't help your mileage?
I want to try a hard bed cover.
Thanks ,Gene