I got a code the other day P0308. Apprantly cylinder 8 had a misfire. And the last time I was at Georgia Diesel they ran threw my injectors and noticed that injector #8 was requiring more fuel. I cleared the code and it hasnt came back up. But if it does come back up, I plan on changing the injector(s). It still has the factory original injectors and I have 137,000miles on the odometer. Would I just be better off just changing them all? Georgia Diesel priced me at $3000 for parts and labor. What do u guys think?