Mobil Delvac MX™ ESP 15W-40 is a high-quality synthetic diesel motor oil designed to extend engine life under the toughest conditions of highway transportation and off-road use. It provides excellent performance in modern high-power engines with low emissions, including those equipped with Exhaust Gas Recirculation (EGR), Diesel Particulate Filters (DPF), and Diesel Oxidation Catalysts (DOC). This oil also offers effective protection for older engine models, meeting or exceeding API CK-4, CJ-4, CI-4 PLUS, and CH-4 specifications. Developed in collaboration with leading equipment manufacturers, it is recommended by ExxonMobil for a wide range of heavy-duty applications, including trucking, mining, construction, and agriculture. Compatible with biodiesel and meeting API SN/SM/SL specifications for gasoline engines and mixed fleets, Mobil Delvac MX™ ESP 15W-40 delivers exceptional protection and performance.