(05 May 2015, 8:54 pm)DaveyBowyer wrote Why are Arriva fitting Ecnospeed on already fuel efficient vehicles? If it was B9s or N230s for most routes, I'd understand but the ideal environment for the Cummins ISBe is for a setup to give plenty of power and torque across all speed ranges thus reducing stress and labouring on the engine. If setup correctly and maintained correctly, then they're cracking little buses but I can only help notice that Arriva are going a step too far with all this eco nonsense.
How exactly do they work, taking what I can from Tyresmokes earlier post, does it only affect pulling away? That's the only time I've ever noticed a 14/64 reg Enviro being a tad sluggish, they do fly when they get going