Is there anything, other than long runs, that can clean a DPF?
What year were DPFs introduced by Ford and Vauxhall. Also is there anything out there that can really clean them, apart from long drives?
Every diesel had to have a DPF from January 2011 to meet EU5. Many larger diesel engines (1.6 up) needed them to meet EU4 before that, but some small 1.1 - 1.5 diesels met EU4 without them. They actively regenerate using the car's fuel every 200 - 300 miles and that clears soot, but they all tend to fill up with ash from around 80,000 miles. They can be cleaned by the Ceramex process.
Answered by Honest John on