DEF System Neglect Is Sending Fleet Managers Straight to a $5,000+ Repair Bill — Here's Why
Diesel Exhaust Fluid systems are one of the most misunderstood — and most expensive — components on modern heavy-duty trucks. Skip the maintenance, and you're not just looking at a repair bill; you're looking at a truck stuck in limp mode on the side of I-40 with a load that needed to be somewhere yesterday. Here's what fleet managers need to know before the DEF system bites back.