Dave,

I have seen a Citroen turbo diesel ‘run away’ like that – as you described it was burning the turbo & engine lubricating oil – smoke went from white, to brown to blue to black then BANG! Fortunately the driver was running away from it at the time waving the ignition key. When it first started my thoughts were “who is using a disk cutter in the car park”

Must have been a funny sight Paul!! I haven’t seen one ‘blow up’ but I would have laughed my socks off if I had…