A driver thinks that the principle of car urea is very simple. In order to save vehicle urea, the purchase cost will be added to the water. What kind of harm will this bring?
Relevant technical experts pointed out that the user's method is more subtle, but because the use of water instead of vehicle urea solution or diluted with water urea solution, water or diluted with water after the concentration of less than 32.5% of automotive urea solution can not Exhaust gas is treated with reduction to keep NOx emissions high and emissions are reduced. The "National IV" standard for optimizing the environment is also tantamount to a dead letter. The long-term use of water will cause the SCR system to work abnormally for a long time. The OBD system will directly reduce the engine output power and increase the fuel consumption. At the same time, it will also damage the components of the SCR system, and the total cost for changing an SCR system is from 70,000 to 80,000. Between the replacement of nozzles alone also need more than 2,000 yuan, in serious cases will damage the catalyst will produce 3-5 million maintenance costs, this approach although the short-term reduction in vehicle use costs, in fact, outweighed.
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