The injectors are junk. I've got a 06 and I've replaced all the injectors once all ready and and most twice. The truck has just over 120k on it. I blew the first engine up at 5200 miles, injector went wide open. Changing injectors is a cake walk. I've always changed engine oil between 3-3500 miles and fuel filter every second oil change. I run quality filters. Now does any buddy know who offers good quality injectors? I had a guy tell me to marine grade injectors next time.