Do all diesel engines have DPF issues?

Is there a diesel car yet that can cope with town driving/short journeys without clogging the diesel particulate filter (DPF) and exhaust gas recirculation (EGR) components?

Asked on 6 January 2023 by derek hammond

Answered by Dan Powell

Sadly not.

The DPF is the reason why the latest Euro6 engines are so much cleaner. The filter needs to perform an active or passive regeneration cycle, if it can't do this then it'll fail to burn off the harmful soot it collects and will clog up. Likewise with the EGR, if the engine doesn't reach its optimum operating temperature on a regular basis then it too will fail.

Unless you plan to drive a minimum of 15 miles per journey, I would avoid diesel. Not only will it save you costly breakdowns, but you'll also spend less on fuel - as diesel engines are not very efficient when used for town/short journeys.

Tags: diesel particulate filter dpf diesels

Similar questions

Are engine revs raised during DPF regeneration?

Are engine revs raised during DPF regeneration on a Nissan Qashqai?

What is AdBlue and what does it do?

I currently have a 2014 Mercedes-Benz C-Class diesel and I am waiting delivery of a new B-Class 180d. I prefer Mercedes diesels to Renault petrol engines. Because I only do around 8,000 miles per year...

Buying a used medium sized diesel - what would you recommend?

I am looking to buy a medium sized diesel without DPF. After reading too many internet forums I am now unable to decide what to plump for given that there seems to be so many diesels that have expensive...