Your numbers will be different, as pointed out in my previous post, because you have a 3/4-ton. Even with the same motor, you will have different fuel injection maps, different transmission shift points, and on top of that your truck (if sold in CA) has the ridiculously restrictive California emissions package. The numbers IOKKI quoted are likely for the 1/2-ton version. Also, the differentials in your truck have shorther (numerically higher) gears, so your engine will turn faster at highway speeds than the 1/2 ton would (which has a numerically lower-ratio differential), causing you to get worse highway mileage than you might otherwise (time to look into a Gear Vendors overdrive).
The trim piece says 1500, mine is a 1/2 ton, not a 3/4.