东北林区运材汽车大多数采用柴油车。该林区地处高寒地区,冬季气温常在-20°～-40℃。林场和作业点一般没有存放汽车的暖库,车辆在夜间是露天存放的。为了克服冷起动困难,常采用发动机整夜着火、低速运转的办法使发动机维持在零上一定温度。这样不仅浪费燃油,增加运行费用,而且增加发动机磨损,缩短发 Most of the Timber Forest products in Northeast China use diesel vehicles. The forest is located in the alpine region, the winter temperature is often -20 ° ~ -40 ℃. Forest farms and operating points are generally not stored in the warm car car, the vehicle is stored open-air at night. In order to overcome the difficulty of cold start, often use the engine all night on fire, low-speed operation of the engine to maintain a certain temperature at zero. This will not only waste fuel, increase operating costs, but also increase engine wear and shorten the hair