Mike Hohnstein wrote:
And they wonder why some states require a upgraded drivers license to drive a large class A.
Smith RV, welcome to the forums and many can be pretty tough with their comments... I'm a little surprised you stayed on after the above but he does have a point. Your power band is not at max rpms with a diesel engine, it's actually closer to half that for the most torque making your Allison tranny smarter. The only reason to manually down shift is to increase the rpms for better engine cooling on a long pull. Otherwise it's best to just let the Allison do it's thing.
Sorry, and welcome back.
