CK-4 Advanced SAE 15W40 55GL/D

CK-4 Advanced Heavy-Duty SAE 15W40 55GL/D, Heavy Duty Diesel Motor Oils are superior lubricant formulated to meet or exceed the warranty requirements of most manufacturers of diesel and gasoline engines. Field tests have shown our CK-4 oils retain TBN levels for longer periods due to the advanced additive chemistry. Designed for the modern high performance, low emission diesel engines using ERG and Diesel particulate filters, these lubricants offer. superior engine protection for heavy-duty diesel engines requiring the latest API CK-4/SN specification.