My 2007 Ford F-350 diesel fuel injectors have all four failed. Ford is denying my warranty claim and blaming me for not changing the fuel filter soon enough. Had them change it 25,000 miles ago. They are also claiming it to be a gel. I was using a blended diesel and a proper additive.

. Ford diesel fuel filters should be changed every 15,000 miles.

. This link might be of interest:

https://www.askmehelpdesk.com/cars-t...ml#post1985158

. Stick with #2 diesel fuel.