有人将发动机比作汽车的心脏,而机油则起着名符其实的“血液”作用,因而科学选用机油尤其重要。通常,机油的工作温度一般都超过了120℃,高温下机油容易氧化裂解产生积炭等沉积物而影响其工作性能。那么怎样才能避免这类情况发生呢?答案就是使用优质机油,掌握好换机油最佳时机.最好使用符合本车发动机规定的或高一档品牌的机油。优质机油具有以下几个特点:一是低温高温性能好,即低温时粘度不大,发动机起动快,高温时粘度不降低,能保持良好的润滑性能;二是保证气缸与 Some people like to compare the engine to the heart of a car, and the oil actually plays a “blood” role, so selecting oil for science is especially important. Usually, the working temperature of the oil is generally over 120 ℃, high temperature oil easily oxidized and cracked produce deposits such as carbon deposition and affect its performance. So how can we avoid this kind of situation? The answer is to use high-quality oil, to master the best time to change the oil.It is best to use the engine in line with the provisions of the car or a higher gear brand of oil. High-quality oil has the following characteristics: First, low temperature and high temperature performance, that is, low viscosity at low temperature, the engine starts fast, high viscosity does not reduce viscosity, can maintain good lubrication performance; Second, to ensure that the cylinder and