Nulon Full Synthetic 10W-40 Heavy Duty Diesel Engine Oil is designed to provide the ultimate protection for all Light Commercial and Heavy Duty trucks. It is also suitable for older SUV diesel engines requiring API CJ-4 not fitted with modern DPF’s. This oil is specifically formulated to offer a higher level of protection in high workload environments for turbo and non turbocharged diesel engines equipped with exhaust gas recirculation (EGR) or heavy duty diesel particulate filters (DPF). Suitable for engines requiring a low Sulphated-Ash, Phosphorus and Sulphur content (Low SAPS).