Ask Honest John

Most recently answered diesel engines questions
I am looking to replace my 2009 Citroen C5 VTR+ Tourer 140 HDI with one that is 2 or 3 years old. I travel 8000 miles a year, 30% in town and the balance on motorways. I recently started using Millers...
I'm looking at buying a Honda Civic i-DTEC 1.6 or a petrol Mazda 3 2.0 SE-L. Could you recommend a diesel engine or suggest whether petrol is the way to go based on future diesel city taxes. Probably looking...
I'm looking at buying a new car, and have traditionally always driven diesel cars. I'm a little worried, however, that Madrid, Paris, Mexico City and Athens have recently announced plans to ban diesel...
A friend's 2007 Audi A6 2.0 TDI had a DPF removed and deleted, as well as an EGR shut. It also had a remap done. From test drive, the vehicle begun emitting excesses smoke when the engine was heated and...
I've got an 8 year old Honda Accord EX i-DTEC 2.2 diesel estate which I like very much and is the third I've had over the last 20 years or so. I hear alarms about possible future penalties on diesel emissions...
Thinking of buying a 2012 Mazda 3 with a 2.2d engine. What is your opinion on the reliability of this engine?
I'm trying to help my brother-in-law buy his first car. He's in his early thirties, has little interest in cars and just wants reliable transport with a low insurance group. He mainly lives and works in...
I own a January 1, 2016 registered SsangYong Rexton ELX 2.2 diesel automatic. Whilst it has performed as expected, I have experienced repeated (five) visits to the dealer to resolve the issue of the engine...
I have a two year old Audi Q5 (bought new) which has the EA189 engine. I have received a few letters from Audi to say that they will be fixing it one day (it is over a year since the cheat was first disclosed)....
I'm looking for the best diesel option out of an 07/08 Volvo S40, Volkswagen Passat or Jetta. Reliability and fuel economy are my most important considerations. What would you recommend?