Originally Posted by S.C. Express
FYI, C.C. in these trucks is fine on ultra flat roads. Roads with elevation changes, going up hill will cause it to pretty much flor the truck and very slowly downshift two gears. This kills mpg's if you care. I find it easier to just tap the shifter down a gear or two if I need to accelerate uphill on the interstate. This requires much less throttle input.
Agree with S.C. Express here, but I will mention that since I installed my Bully Dog it has pretty well solved all those issues.