For heavy-duty applications including trucks, buses, and commercial vehicles, Mobil Delvac 15W-40 is a high-performance diesel engine oil that offers superior protection against wear, rust, and corrosion while assisting in extending engine life.
With its prolonged engine life and fuel economy potential, Mobil Delvac 10W-30 is a high-performance diesel engine oil made for heavy-duty uses like mining, construction, agriculture, and on-and off-highway trucking.
Mostly used in gasoline-powered passenger cars and light trucks, 10W-30 engine oil is a multi-grade oil that provides good protection in a variety of temperatures, especially during cold weather.
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