WHY TRIAX: Quieter engine operation, lower operating temperature, 4-6% MPG Improvement, faster and smoother turbo spooling, exceptional cold start properties down to -45 F. Outperforms leading brand motor oils by a wide margin. FRICTION MODIFIED: Boosted with Nano-Boron and Moly friction modifiers for significantly improved wear protection over any other diesel engine oils. EXTREME WEAR Protection - Up to 48% lower wear than learning OEM and industry standards due to a much lower friction coefficient (50% lower or better) than the competition. LONGEST DRAIN INTERVALS: Capable of drain intervals exceeding 100,000 miles for highway trucks (semis) and 30,000 miles Super Duty Pickups. IMPROVED DURABILITY: Very high shear stability and film strength. Maintains its viscosity better than other diesel oils. Protects your engine in severe service conditions such as towing or hauling, without compromising drain intervals. ELIMINATES STICTION: The only engine oil that eliminates HEUI injector stiction, preventing injector lockup, engine misfires, and a lot of headaches; No need to use additional aftermarket additives Everything you need is built in and fully optimized for unmatched performance. DPF / SCR PROTECTION: Keeps your diesel particulate filters clean, prevents clogging and maintains engine optimal functionality. FULLY COMPATIBLE with all heavy duty CK-4 or previous diesel engines, including Volvo, Cummins, Detroit Diesel, MAN, Scania, Powerstroke, and Duramax. TRIAX Fleet Supreme ESP synthetic diesel oils are the pinnacle of engine lubrication engineering. These oils come pre-loaded with friction modifiers beyond standard products, offering unmatched performance and durability, while maintaining full compliance with the latest heavy duty diesel engines. These diesel oils provide superior engine wear protection, much longer drain intervals, improved shear stability, soot control, and engine cleanliness. They are fully compatible with all heavy duty diesel engines requiring a CK-4 or equivalent product and all OEM specifications based on the CK-4 core specification, such as Volvo, MAN, Scania, Ford, GM, Cummins, Detroit Diesel, and many others.