Ask Honest John

Most recently answered diesels questions
I traded in my Peugeot 207 SW for a Kia Venga 1 diesel, which is a nice car and I'm happy apart from one thing: there is a distinct diesel smell in the cabin. I took it back to the dealer and left it with...
I've been offered good deals on the 2.0 D Tourer versions of both the Toyota Avensis & the Citroen C5 VTR. There is little to chose between them on price - the Toyota is just a bit more, but the Citroen...
We wondered if you could offer your thoughts on the following please. My partner's company car (currently 9-3 Sportwagon) is due for renewal in September this year, and he is looking for another diesel...
You stated recently that you were considering not recommending diesel vehicles due to expensive problems with Turbos, Intercoolers and EGR Valves etc. Would this also include petrol engine cars fitted...
Having been a 'petrolhead' for many years, owning a string of high performance saloons, I am afraid the time has come to change habits. With ever increasing fuel costs, car tax, insurance, poor road repairs...
I would appreciate some advice regarding the annual running costs of diesel versus petrol. We have been running two diesel cars. My Audi A4 is 08 registered diesel - currently just under 42,000 miles on...
Which is worse: petrol in a diesel car or diesel in a petrol car and why?
Last year I collected 12 penalty points that will remain with me for the next 3 years. I currently have an Audi A4 Cabriolet 3.0 with 100,000 miles, but prior to that a Jaguar XKR and a TVR Cerbera. I...
I am having trouble with my 2006 VW Golf TDI and wondered if you might have any thoughts. I am not technologically literate, but I understand that the engine has a turbo so that when you press the accelerator...
I own a 2007 Citroen C4 Picasso with the 1.6HDi engine (about 110bhp I think) with the DPF. However it seems that it is essential for these engines to be run with C2 grade engine oil (low sulphur and ash...