JCB has made one of the biggest investments in its history to develop the off-highway sectors cleanest engine in readiness for incoming emissions legislation. The company has invested around 80 million in researching and developing a new combustion system for the new JCB Ecomax T4 4.4 litre engine - the latest generation of the JCB Dieselmax engine. The investment has delivered an industry-first solution which eliminates the need for any exhaust after-treatment and delivers cost savings for mid-range customers. The engine is now undergoing full in-field testing before going into production in 2012 to meet Tier 4 interim/Stage 3B legislation. The key benefits of the innovation are reduced fuel consumption, reduced cost of ownership, better reliability and better packaging and no compromise of machine design.