On-Car vs Off-Car DPF Cleaning: Which Does Your Vehicle Need?
Ring around about a blocked DPF and you’ll be quoted four different things, from a twenty-dollar bottle to a four-figure replacement. They aren’t the same job. Here’s what additives, on-car cleaning, off-car baking and replacement each actually do — and how live data tells you which one you’re looking at.
Your DPF Keeps Blocking. The Filter Isn’t the Problem.
A blocked DPF is a symptom, not a fault. If yours has blocked twice, something upstream is loading it faster than it can clear — a stuck EGR, a leaking injector, a turbo passing oil, or a sensor telling the ECU a story. Here’s how each one is identified, and why cleaning alone just buys you six months.