I didn't see it because I never read any papers on a Sunday. What is they say about the Mazda 6? So far, the Mazda Skyactiv is the only diesel that meets EU6 without the need for additives. So far I have not heard of any trouble with it (so where did they get their information, and are they referring to the old Mazda 6?). I ran one for 14,000 miles last year without a hint of any kind of trouble (apart from a puncture and a woman crashing into the back of it). But as for the diesel v/s petrol conundrum, my view is never buy an ex fleet diesel at 3 - 4 years old because between years 3 and 6 it is likely to need a new DMF and clutch, a new DPF, at least one new EGR, at least one new turbo together with oil feed and return pipes. Total about £5,000. Modern petrol engines are capable of 45-50mpg so diesels need to be capable of 80-100mpg to make up for their increased long term costs and none of them can do 80-100mpg.