(17 Jun 2022, 5:07 pm)L469 YVK wrote What about 6337 or one of 6352-55 with 6337 standing in on the X10?

6336/7 have smaller fuel tanks than the newer examples and as such can't last a full day on the X10 without needing to be refuelled.

I do wonder how a wait for a toilet stop could be facilitated at Middlesbrough considering it shares stand 9 with other services with Arriva's service 9 scheduled to depart 5 minutes after the X11.