Ask Honest John

Most recently answered diesels questions
I currently have a BMW 1 Series diesel that has a DPF fitted. I drive two daily trips of 15 miles with quite a bit of traffic. Over six years of ownership, I have not currently had any DPF issues but am...
I do around 25,000 miles per year and am looking for a new vehicle. Much of my mileage is long distance (four trips each weekend of 90 miles) but travel during the week is often short commutes to work...
I'm thinking of buying a diesel again. The one I'm interested in has the latest Euro 6d-TEMP compliant engine/exhaust system. What life expectancy do you think these latest diesels have in terms of legislation,...
I currently have a 2011 Mercedes E250 CDI Estate, which has nearly done 100,000 miles. I do around 24,000 miles a year, mainly commuting on B roads to my business. I use it to carry stock between two shops...
What is the best automatic diesel car for taxi use please?
I have had a 2003 Mercedes-Benz E320 CDI sitting on the drive for the last six years with some diesel fuel in the tank. Now I am about to restart using the car again, do I have to drain out the old fuel...
I'm looking for a used car with a £5000 budget but it needs to be a diesel as I'm covering 1400 miles per month. I'd prefer an automati0. What do you recommend?
I travel 450 motorway miles a week, what car would you recommend? My budget is between £12 to £15k. I'm considering an Audi A6.
I have a budget of £3000 and would like to get a used estate car and diesel. What are the best ones to be looking at for reliability and economy?
I have a diesel Nissan X-Trail and I try to limit the number of short journeys. When I have to use it I tend to drive in the 2000rpm plus bracket. I have done 12,700 miles this way yet I have never noticed...