(Yesterday, 11:01 am)L469 YVK wrote How much would these cost to convert to Euro 6? If they're pretty reliable, GNE would be better converting them and running them into the ground for the next 5-8 years especially around Derwentside where they'd likely be happy going up / down hills all day - maybe some hoyed on the quieter X30/X70 boards with more Enviros freed up for the X10.
What the Mercs? They absolutely would not be happy going up and down hills all day at their age. Why do you think the rest of them didn't last as long as the ones for the 4 have? They've had a relatively easy life compared to the other GNE Citaros.