What I have found is that with the lower RPMs comes better economy. You don't want to be low enough to be lugging it either. Get it to where you run the lowest rpm and be able to pick up speed easily with relatively light throttle.
__________________
For now 1996 Dodge Ram 5.9 Cummins 365HP 830TQ pulling a 2006 28' Dutchmen Fifthwheel and at times a 16' boat behind that!
|