How to clean a DPF filter, the three methods that actually work, and the four that don't. Plus when cleaning is the wrong answer.

DPF regeneration explained in plain English. What the three types of regen are, when each happens, and what to do when one fails.

How long can you drive with the DPF light on? The honest answer, the risks of ignoring it, and what to do next.

What a DPF filter is, how it traps soot, and why it matters for modern diesel cars. The plain-English guide.

AdBlue warning light on? The most common causes, the no-restart countdown explained, and what to do (and not do) next.