Drive it like you plan to from day 1.The computer adjusts to how you drive so if you drive it very carefully for a while,then you really push it a lot it won't work as well. My dad drove his carefully from day 1 and has had a very trouble free truck.{90K miles}. I got mine used but it had always been pushed and I push it and I have a trouble free truck {100k miles}.The previous owner had new injectors installed but that can happen to any of them I guess.
