... high quality base oils, and fully meet the requirements of Euro 4 engine, overload, wear, clean, and environmental protection performance ... 40 20W-50, 4L 18L 170Kg Item CJ-4 CJ-4 CJ-4SAE viscosity grade10W-30 15W-40 20W- ... us :our company mainly sell engine oil for motorcycle, bus ,truck and heavy-duty machineary .and we also ... , please let we know engine oil CJ-4 10W-40 15W -40 20W-50 for .EURO 4 engine