Mobilgard HSD+ 15W-40
Mobilgard HSD+ 15W-40 is an advanced multi-grade diesel engine oil formulated for severe service high-speed diesel engines used in marine applications. The tailored formulation provides excellent wear protection, extended oil drain capability and outstanding high temperature performance. It is fully backward compatible and suitable for both modern low-emission engines and older heavy-duty diesel engine designs.
One of the key advantages of Mobilgard HSD+ 15W-40 is its extended drain capability. The advanced base oil and additive technology provide excellent oxidation stability and TBN retention, allowing service intervals up to 50% longer than standard OEM recommendations in suitable applications. This helps reduce maintenance frequency and operating costs.
Mobilgard HSD+ 15W-40 also provides outstanding soot control and engine cleanliness. The formulation helps prevent sludge and deposit formation while maintaining viscosity stability. This contributes to improved engine efficiency, reduced wear and extended engine life in demanding operating conditions.
Another important benefit is its strong wear protection and corrosion resistance. The oil helps protect critical components from abrasive and corrosive wear while controlling oil consumption. The low ash formulation also supports long life of emissions aftertreatment systems such as DPF, DOC and SCR.
Mobilgard HSD+ 15W-40 is recommended for the latest heavy-duty diesel engines, including those equipped with exhaust aftertreatment systems and EGR. It is suitable for severe marine applications and diesel-powered equipment from American, European and Japanese OEMs including Caterpillar, Cummins, Detroit, MAN and Volvo.
Physical characteristics include SAE 15W-40 viscosity grade with kinematic viscosity of approximately 109 mm²/s at 40°C and 14.1 mm²/s at 100°C. Mobilgard HSD+ 15W-40 has density of approximately 0.875 g/ml at 15°C, flash point of approximately 225°C and pour point of approximately −33°C. Total base number is approximately 9.8, supporting corrosion protection and extended oil life.
