(24 Nov 2015, 9:57 pm)DanPicken wrote They're Transbus/Alexander engined so its fine.
Transbus / Alexander don't make the engines. All of the Darts operated by GNE either have a Cummins 6BT engine (up to 51 plate) or a Cummins ISBe engine (52 Plate onwards). Though 8222 was retrofitted with a Cummins ISBe engine at some point.