HR 16DE engine is a new high-performance inline four-cylinder engine developed by Nissan as the successor of QG engine in order to improve its competitiveness in 2004 and beyond. The newly developed all-aluminum alloy engine has achieved the harmony and unity of driving performance, economic performance and environmental protection performance. The development goal of HR 16DE is to reduce friction, improve thermal efficiency and increase power output through technological innovation of its components. By optimizing the design, the occupied space and overall weight are at the top level of 1600cc displacement; Torque, fuel consumption, shock absorption and noise reduction at medium and low speeds are at the top level in the same class.