Which cars are No. 3 diesel cars? Lets talk about it briefly. The diesel engine before July 1, 2007 is the second yellow standard car. The No. 3 diesel engine is after July 1, 2007. The No. 3 diesel engine actually installed a set of treatment system on the exhaust pipe. Diesel engine after July 1, 2015 is the fourth national standard. The fourth national standard begins to install urea plants. After 1 July 2007, the second and third countries cannot be listed after 1 July 2007 and 15 July 2007, respectively. And 17 years is the year of the implementation of the national five-year standard. On July 1, 2019, the sixth grade was implemented in many places. Why does it take so long from the third to the fourth and the second from the fourth to the fifth? It was mainly because the national IV standard fuel had not been produced at that time, and the technology could not keep up with it, so it took a long time from the third to the fourth year of the founding of the peoples Republic of China. Later, automotive technology and fuel technology developed rapidly, so the cycle was short. However, at present, most of the No. 3 diesel engines in China are still the main force. Traffic restrictions are only implemented in a few places, but it is very difficult to play cards in the third year of junior high school. Personal analysis, for reference only! I am honored to answer your questions! The No. 3 diesel truck was officially licensed and on the road on July 1, 2009. In other words, the car that leaves in the future must be the third in the country! At that time, the engine of the No. 3 diesel vehicle took two routes, one was a high-pressure common rail EFI vehicle, and the other was an EGR engine (exhaust gas secondary supercharged combustion, commonly known as fake country III or big pump vehicle). On January 1, 2015, the license plate was revoked and the production of No. 3 car was officially suspended! At the same time, the four cars were officially produced and licensed. On January 1, 2017, the No. 5 diesel car was officially licensed, and the production of the No. 4 vehicle was stopped. State 5 will emit diesel trucks of less than 3.5 tons on January 1, 18. Stop playing on the fourth board. The Chinese commented on Wechat. To put it bluntly... Those who dont burn urea are all No. 3 cars. The second is large pump fuel injection. All vehicles after the third year of junior high school are EFI. This mainly depends on whether to burn urea or not.