(25 Sep 2016, 9:51 am)mb134 wrote If you take 7514-21, and compare them to the 2009 Geminis, the E400s would run away with it. As I believe both use the same Cummins engine, surely the engine can not be the sole reason that majority of the Geminis are shot?

But even then, Stagecoach operate their Enviro 400s with the exact same Gearbox / Engine combination as the Wright Pulsar Gemini DB300s without any major issues although Stagecoach tend to stay put around Newcastle and it's suburbs but still, must still be pretty demanding work for them when they'd be driven quite hard to keep to time etc with the traffic in the City Centre.

Did Wrightbus not set their turbo configuration up differently as you can hear the distinctive voith whine on a Stagecoach Enviro 400 but Arriva's DB300s feel a lot more labored in comparison.