Like to post an update to the cap and millage, I personally have not seen any reduction of range with the cap on my truck, I just made a 530 KM trip (each way) with 1000 pounds in the back of the truck and we got very good range driving at 95KM or 59 mph. We took a different route back and was travelling at 115 km or 71Mph and the truck got better then estimated range expected, we were 1000 pounds gear and 3 guys in truck.