Makinalube Ultra HD PLUS is blended from highly refined base stocks and selected additives to provide excellent detergency, dispersancy and anti-wear properties. The base number of 12 provides the necessary reserve alkalinity to protect vital engine parts against corrosion and premature engine wear. Additional quality features are: Reduced piston deposits Protection against cylinder bore polishing Reduced oil consumption Reduced filter plugging Less oil oxidation and thickening Neutralizes corrosive acids