Ask Honest John

Most recently answered dpf questions
Four months since buying a 2014 Mazda 3 2.2-litre diesel and on the day of collection the DPF warning light came on. The garage has attempted to repair this but after several attempts the issue remains....
Is the MG seven year warranty any good? The catalytic converter has failed (or the particulate filter) after only three years. Is that acceptable to be excluded from cover?
If the DPF is blocked in my Ford Kuga, how will I know? What is the cheapest way to deal with the situation?
Can the Toyota Proace diesel van be used for short journeys? I believe it has a DPF.
I have a 2012 V70 2.0-litre diesel with just over 70,000 miles. It's extremely quiet and comfortable with no rattles, knocks or squeaks and I fill up 2 out of 3 times with super diesel. Living in rural...
We have the opportunity to buy Vauxhall Insignia with a diesel engine. It has 41,000 miles and it's selling for £4150, but we're worried about the DPF. Your opinion would be appreciated. Many thanks.
I’m buying a BMW X1 but I’m not sure which engine to get between the 1.8 diesel or the 2.0 petrol. I drive around 10,000 miles a year - probably 70/30 motorway/town. I’m told from most dealers that for...
At the start of the year, I bought a 2018 diesel Peugeot 3008 to cater for a daily commute of 40 miles each way and regular long distance family trips - 20,000 miles per year on average. Post-Coronavirus,...
I'm looking for a reliable 4x4 that has lots of storage. I mainly do quite low mileage so a DPF is a concern unless you can advise how I may manage this. I would be open to either and SUV or pickup but...
Is there any reason not to have the DPF on my car removed? I do a lot of short journeys. The garage would charge £600 + VAT.