Ask Honest John

Most recently answered dpf questions
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.
My 2019 Range Rover will be parked up for the duration of the coronavirus lockdown, with the exception of a weekly 3-mile supermarket trip. It’s already has DPF replaced after 312 miles. How can I prevent...
I want to change my Ford Connect for a Transit or Transit Custom. Most of my journeys are less than 10 miles - will I have DPF problems?
Does active regeneration of the DPF happen automatically? And should I put additives into the fuel?
I’m considering buying a new Audi A6 next year, but I can’t make up my mind on which engine I should pick. I live in London and don’t do more than 6000 miles per year, I’d say 80% of which is city driving....
I do a lot of short journeys so is buying a new diesel a no no with having a DPF?
 

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