The cylinder head intake and exhaust ports and intake and exhaust manifolds are shape optimized for greater volumetric performance. Mitsubishi reduced the friction from the engine by including elastic grinding from the valve stems, adopting a superior-efficiency shroud equipped plastic impeller while in the water pump and applying 0W-twenty minimal-viscosity https://trentonmomic.blogpayz.com/31451289/the-ultimate-guide-to-mitsubishi-4b12-motor