Construction Machinery 1506D Diesel Engine 6-Cylinder for D6r Bulldozer 详细照片 AdvantagesGood fuel economy: cycle-weighted fuel consumption up to 7% lower than previous models.Strong high-temperature and high-altitude capability: only about 4% power derate at 40°C and 2,000 m.Wide fuel tolerance: HEUI injection system reliably handles varying diesel fuel quality.Low maintenance cost: 500-hour standard oil change interval; maintenance-free hydraulic lifters and multi-V belts