never drove diesel and was wandering what was a good rpm to shift at?

 

Roughly 1900 or so. It's going to vary depending on conditions are you loaded or empty? on flat ground? an incline? or a decline? You don't have to wind it out tight on every shift thats what kills you fuel mileage. You want your rpms to drop back down to peak torque at 1600 rpms or even slightly lower depending on conditions. It's called progressive shifting, only reving as much as needed when rowing through the gears. It's how you drive for economy. That wind it out past 2K stuff on every shift really sucks down the fuel..