1.选用凝点低、流动性好的轻柴油冬季低温使柴油的粘度增大,流动性变差,不易喷散,造成雾化不良,燃烧恶化,导致柴油机的启动性、动力性和经济性能下降。因此,冬季应选用凝点低和发火性能好的轻柴油。一般要求柴油的凝点应低于当地当前季节最低气温5～10℃。2.选用粘度较小的柴油机机油冬季低温下,柴油机机油 1. Selection of low pour point, good liquidity of light diesel oil in winter so that the low temperature diesel viscosity increases, poor fluidity, easy to spray, resulting in poor atomization, combustion deteriorated, leading to the starting of diesel engine, power and economic performance decline. Therefore, the winter should use low pour point and ignition performance of light diesel oil. General requirements of the condensing point of diesel should be lower than the local minimum temperature of the current season 5 ~ 10 ℃. 2. Use less viscosity diesel engine oil in winter low temperature, diesel engine oil