: Inspect the Diesel Particulate Filter (DPF) and DEF system. These are among the most expensive components to repair on modern trucks.
: Request a download of the engine control module data to see true fuel mileage, idle time, and any recurring fault codes. Used vs. New: The Financial Breakdown buy used commercial truck
A thorough inspection is non-negotiable. Reviewers at BAS World and Signature Truck Center suggest prioritizing these areas: : Inspect the Diesel Particulate Filter (DPF) and DEF system