I just returned from a round trip from NJ to FL Keys and back towing a 26' Sotty Travel Trailer. I tried to keep the speed around 65 mph, and noticed the Engine RPMs don't stay in the 1850 range. They seem to drift up to just under 2K and stay there. The truck is still doing it without trailer. Is this just a temporary nuance? Could there be a problem with the Alli? Truck has 45,500 on it, and dealer did a total trans flush when truck had 36K on it, and re-filled with DexIII. Thanks in advance.