Had a petrol territory now a diesel - wife filled D40 up from 1/4 to full then drove 30km to home , as soon as I went near the vehicle I could smell it . Pulled tank , cleaned it , changed filter , primed clean diesel through it and started it - ran for a couple of minutes then stopped to check for leaks etc then went for a drive - ran normally for about 5km then derated to 2500 rpm , no engine light or dpf let the engine cool down and she was back to normal but sporadically derates any clues to any damage , still under warranty but I don,t think this would qualify lol