TRIAX Fleet Supreme ESP CK is a full synthetic oil with the latest technology in heavy-duty engine oils. It offers the latest in heavy-duty diesel specifications, combined with state-of-the-art tested and true anti-wear technology. All TRIAX Fleet Supreme CK products are full synthetic lubricants developed to comply with the latest diesel engine OEM requirements. They offer backwards compatibility with virtually all heavy-duty diesel engines including North American and European Ultra-High-Performance Diesel (UHPD) engines requiring Euro 5 and Euro 5 low SAPS engine oils. TRIAX Fleet Supreme products are all formulated with our proprietary Continuous Regenerating Plating (CRP) technology. They are designed and HD Efficient Dynamics for friction optimization, reduction, and unsurpassed fuel economy through friction reduction, not just viscosity. High-efficiency detergent systems and high retention TBN keep your engine ultra-clean and prevent corrosion and acid while maximizing overall engine protection to the highest degree. Continuous, effective shielding of engine parts under high frictional or thermal load effectively doubles their life. This type of plating is extremely resilient and significantly reduces engine wear. Outstanding turbo-charger protection ensures that it will not burn up inside the turbochargers when stopping the engine or when running hot.