1. Buy regular manufacturer's products
Oil-water separator
The market price of oil-water separator varies from several hundred to several thousand, and the quality is quite different. There are also some fake and shoddy products. If you buy inferior products at a low price, the final price may be a complete set of oil nozzles or even changing engines. Therefore, when you buy oil-water separators, you must go to regular maintenance stations to buy products of major brands.
at present, high-end diesel filters are basically monopolized by foreign capital and joint ventures, and there are almost no national brands in the main engine factory. The product prices of these enterprises are relatively high, and the main foreign-funded enterprises are: Man Hu (Germany), Parker (USA), Sophie Ma (Italy), Mahler (Germany), Ferrega (USA), Baowei (USA), Donaldson (USA), Bosch (Germany), etc. Domestic brands such as DIFITE.
2. Select a large displacement
In order to ensure the oil supply of the whole engine system, the installed oil-water separator model must be larger than the original vehicle's own displacement.
3. Pay attention to timely drainage
Don't think that you can sit back and relax when you install it. There is a transparent plastic water-collecting cup under the oil-water separator. When using the oil-water separator, you must pay attention to timely drainage. If there is too much water, the oil-water separator will not play a role in oil-water separation.
automatic drainage function
some advanced foreign manufacturers have already had automatic drainage function. The filter cup under the oil-water separator is equipped with a water level sensor. When the water level reaches a certain value, it will prompt on the computer display screen above the dashboard that there is water, and the oil-water separator must be drained. Drainage operation is also very convenient. After parking, pull the handbrake, turn off the engine, turn the ignition key to the driving position, and press the switch on the instrument panel to complete drainage in about 18 seconds.
4. Choose the oil-water separator with heating function in the north.
In addition, the water under the water collecting cup is easy to freeze in cold weather, especially in the north. Many users put on thick cotton-padded clothes for the oil-water separator to prevent the oil-water separator from freezing. However, to be on the safe side, it is recommended to choose the oil-water separator with electric heating function.