ASUKI® APEX 頂点 5W-40 is a Premium 100% Fully-Synthetic engine oil for use in modern four cycle gasoline engines. The product is fortified with ASUKI®’s signature NANO Technology producing excellent stability and high viscosity index. It is formulated with outstanding detergency power and anti-wear protection to deliver outstanding overall performance. ASUKI® APEX 頂点 5W-40 possesses excellent lubricity and high shear stability characteristics. It maintains stay-in viscosity grade throughout operation for optimum engine performance at all driving conditions.