Diesels of all sizes use less fuel at idle because there is no throttle and no intake vacuum for the engine to work against.
They use so little fuel that keeping the engine warm at idle can be an issue in cold weather.
Diesels of all sizes use less fuel at idle because there is no throttle and no intake vacuum for the engine to work against.
They use so little fuel that keeping the engine warm at idle can be an issue in cold weather.