Heavy-duty trucks and hardworking equipment powered by diesel engines need durable motor oil that is both protective and efficient. Valvoline Premium Blue One Solution Gen2 10W-30 Engine Oil, designed to protect hardworking diesel, gasoline and natural gas engines, helps provide the best of both worlds. It reduces working capital with inventory consolidation by eliminating the need for multiple engine oils. Plus, it helps avoid critical failures by reducing the potential for human error. Our superior blend resists oxidation, deposits, corrosion and wear better than industry standards. No wonder our Proprietary One Solution Technology is exclusively endorsed and recommended by Cummins for both on-road and off-highway applications for heavy duty diesel, gasoline or natural gas engines. It is specially formulated for faster and safer cold starts and has enhanced thermal properties for high temperatures during hot weather to help ensure year-round performance. Plus, extended drain intervals reduce oil changes so your engine can work longer between downtime.