(16 Feb 2016, 11:36 pm)nMichael wrote I'm not sure then but according to the changes on the link above it says:
Service X2 - Will be withdrawn and replaced by Lime route 8 between Washington & Sunderland with an identical route as it is now and also replaced by service X1 between Washington & Newcastle.
By the sounds of it, the 8 did directly replace the X2 between Sunderland & Washington.
Aha. Ive worked out what it is.
There was a time when the X8 was withdrawn and replaced with an extended 8 running from Castleside to Chester-le-Street (had previously changed to an X8 at Stanley). The 8 was later extended back to Sunderland, via the same route as previously (and also the X2 route) and replaced with service V8 between Stanley and Castleside.
That will be how the X2 was replaced.