我的新车使用柴油，这对长途驾驶更高效。

My new car uses ___diesel, which is more efficient for long-distance driving.

为了运输重物，一辆大马力的柴油车通常是最佳选择。

For hauling heavy loads, a powerful ___diesel is often the best choice.

许多城市正致力于减少以柴油为动力的公共汽车和卡车的排放。

Many cities are working to reduce emissions from buses and trucks that run on ___diesel.