• Manufacturers Standards: Quartz 7000 Diesel S 10W-40 satisfies rigorous manufacturers’ standards (see above), while guaranteeing perfect and constant quality. • Resistance to Oxidation: Thanks to the good quality of its base oils and additives, Quartz 7000 Diesel S 10W-40 provides a specific resistance to oxidation. • Engine protection and cleanliness: This oil ensures good engine cleanliness, reducing particle accumulation in the motor via efficient dispersant power. • Long-term wear Protection: Long-term wear protection of engine parts (distribution, ring, plunger and liner) increasing engine life.