Common Rail diesel fuel systems began appearing around the turn ... Unfortunately, the EGR valve, among other components, can experience a build-up of carbon, reducing efficiency and output.

Cummins Launches Next Generation 6.7L Turbo Diesel Pickup Engine System for 2025 Ram Heavy Duty Trucks ...

Biodiesel deposits may form in the high-pressure fuel pump of trucks equipped with diesel engines, according to the NHTSA.