(19 Jan 2016, 5:10 pm)Davie wrote Whilst en-route to College this morning, I noticed both 5222 & 5240 were both chucking smoke out of their exhaust pipe's.
The regulations regarding diesel exhaust smoke stipulate 'just visible' - but it isn't clear whether that refers to the exhaust plume or the vehicle (ie if the vehicle is 'just visible' . . . )