First of all, the replacement of transmission oil, especially automatic wave oil, is difficult to repair once there is a problem in the automatic wave box. The correct matching of oil products is the precondition of normal operation and prolonging the life of the automatic wave box. Manual wave box is not necessary, as long as the model is right, we should pay special attention to GL-4 and GL-5 because of the different additives make GL-5 corrosive strong can not be used together. Another kind of engine antifreeze coolant that the owner neglects is that the engine antifreeze coolant is added when it is depleted. Better to add pure water in summer and antifreeze in winter. These are all wrong. The function of the liquid is not only cooling and freezing-proof, but also boiling-proof because of the high working temperature of the engine. All kinds of materials contacted with it can not only be corroded, but also be protected. At the same time, it does not scale during its long working process, and its oxidation is small. It is these reasons that make the refrigerant can not be diluted, and different brands can not be mixed (chemical composition is different, easy to react). Because the quality of brake oil sold in the market is quite different, although it is a way to distinguish its fluidity by measuring its boiling point and low temperature by heating, but considering the purchase of testing tools and time factors, I chose 4S. Another project to choose 4S is the fuel filter, because the normal work of the oil circuit and nozzle can be guaranteed as much as possible.

The remaining oil filters, air filters and air conditioning filters to the auto parts city to solve, choose a better, inferior and better quality from the appearance of some differences, the difference is not very big, mainly cleaning and replacement.