[scb]

Kind of an old thread but here's an update. Same truck is now a few years older, has 110k on the odometer and still going very strong. Over the last couple of years, I've had to make several 500 mile trips to my daughter's college and I've logged the mileage. Truck was loaded with her school stuf but not much weight and no trailer. First trip (stock everything including tires size) I got about 15 mpg. I retuned with a Superchips unit and got about 16.5 - 17. each trip has been slightly better, and the last trip was 19 mpg. Tank was filled right up to the top of the neck so I know I'm getting good readings. Don't know if it's made any difference with the trailer, but I'm liking the numbers a whole lot better.