Thanks for the detailed advice and this is exactly what I have been trying to get. Not sure why an independent shop would not be straight up with me on the issue. I can't imagine adding a Cat pre-filter would be bad for the injectors either. I spent way to much money on this damn Denali, and I...
I need some advice from the experts here. I have a new 2500 Duramax LML and I was wondering about adding an aftermarket fuel filtering system to it for better filtration. I have asked the dealer and a shop that works on diesels and they both said to run it stock. Am I getting blown off here so...