The technology group Wärtsilä has entered into a customised five-year Optimised Maintenance agreement with Canadian ferry operator Societé des Traversiers du Quebec (STQ). The agreement covers the ‘F.A. Gauthier’, a 133 metres long ferry operating with Wärtsilä 34DF dual-fuel engines and other Wärtsilä equipment. Signing of the agreement took place in the second quarter of …