(30 Sep 2021, 8:41 pm)Train8261 wrote 6100 had left Percy Main to move to Riverside or Hexham which now places the odd Coaster StreetLite on the 309/310/311

I mean for washington, are only the OmniCitys, and Xlines & 6099 ofcourse Euro6, or are there others. 
Because I can imagine Hexham/Deptford/Washington struggling for euro 6. Also are all xlines branded buses & tyndale links euro 6?

Also, all the Omnidekka are Euro 4/5 & 3941-3965 are Euro 4