Since the implementation of the " National III " ( Euro 3 ) automobile exhaust emission standards , there have been users asking how different the special vehicles for the National 3 and the 2nd National Standards are. How prices differ so far , compared to the pros and cons. Here is an explanation. a bit. The main difference between the three national cars and the second national car is the engine exhaust emission standard. The other components of the car (power, chassis, girders, tires, and front and rear axles) are essentially different. With the same power of the engine, the exhaust emissions of the National III engine are lower than those of the Guoji engine. The original intention of the national environmental protection department and the vehicle management department was to reduce vehicle exhaust emissions and improve air pollution without affecting power. NDRC notice, since July 1, 2008, new cars on households allowing only country, three emission standards for cars. The China National II Discharge Standard Vehicle is not allowed to board the vehicle at the vehicle management office, but the already-licensed Guoji Vehicle continues to drive on the road. At the time of the market, there were a large number of national cars that had not yet been sold. Country two countries three vehicles compared to fuel-efficient cars, about one liter of about 5 tons models one hundred kilometers province, about 10 tons 2L. But the premise is long distance and stable driving. Small-scale driving operations have little effect on fuel consumption. The three engines of the State have improved the internal structure on the basis of the second country. Generally, the components involved include cylinder heads (combustion chambers and air passages), intake and exhaust manifolds, valves, camshafts, pistons and corresponding auxiliary mechanisms; Under the premise of less power and emissions, the precision of the combination of components is more demanding, and the external difference is not obvious. At the same time, an exhaust gas catalyst has been added. The working mechanism of the catalyst is to use precious metals (platinum, ruthenium, palladium, etc.) coated on the surface of the filter element to promote the further oxidation (burning) of harmful components such as CO , HC , and NOX in the exhaust gas into non-harmful substances such as CO2 and water. The efficiency is directly related to the precious metal content of the catalyst. The higher the precious metal content is, the faster and more completely the conversion is. In order to meet the national III emission standard, the precious metal content of the catalyst is nearly 1 times higher than that of the National Second Engine (usually Add a catalyst directly). Therefore, the cost of the National III engine is much higher than that of the National Second Engine, and the price of the entire vehicle naturally goes up. From a practical point of view, for the users, especially the transportation vehicles that earn money for transportation, the country’s three standards have been used to increase the cost. In the country’s three emission standards, small cars are priced at 30,000 to 20,000. More than 50,000. Some accounts had to be counted. At the time of buying a car, the country’s second-largest car still had a large market, but it was unable to be on the card and could only flow on a small scale. The national second car can also enjoy the manufacturer's warranty service with the certificate and the warranty and the three cars. More models, please consult, contact: Du Juan. Business QQ Brake Disc,Brake Pad,Brake Shoe Hana Auto Parts Co., Ltd. , http://www.zjautomirrors.com
Talking about "National Two Cars" and "National Three Cars"