Smarty.. but if you don't have an air intake and exhaust i'd do that first... and the best chip for fuel economy unfortunately is your right FOOT...eelout
It has alot to do with this new low sulfur fuel BS. Better for the environment but less mpg. Wats up with that?? Its rediculous.Are some trucks just extremely different? Tonight I went on about a 150 mile trip, reset my overhead when i left, and drove 73 the whole trip, and my overhead still only read 18mpg. when i first bought the truck new it was getting well over 20 on overhead. what gives??
Thread Hijack alert!I've had my overhead reflashed ('06 Mega Cab) but it's still only a guideline and has never been closer than 1 mpg to the truth. There are just too many variables; especially if you've got aftermarket stuff plugged in. It's fun to coast downhill from my local fuel station, reset the overhead, and pretend I'm getting 34 mpg though-