The new API CJ-4 oils are made for high-performance diesel engines designed to meet 2007 on-highway exhaust emission standards. API CJ-4 oils exceed previous performance requirements and are specifically designed to protect emission control systems, help comply with emission standards, reduce engine wear, and control piston deposits and oil consumption...
API CJ-4 oils are also engineered for use in previous model year engines and intended
Also known as: API CJ-4