Xiamen King Long offers a range of diesel-powered buses such as the XMQ6127Y, XMQ6900Y, and XMQ6180G, widely used for intercity and urban transport. Fuel efficiency for these models typically ranges between 2.5 km/l to 4.5 km/l depending on the size, engine type, and load. This calculator helps estimate diesel usage, cost, and CO₂ emissions based on your chosen model and distance.