What is the difference between National IV and National V vehicle emission standards?

1 Answers
VanJeffrey
07/29/25 2:08pm
Differences between National IV and National V vehicle emission standards: 1. Different nitrogen oxide (NOx) emission standards: National IV vehicles have an NOx emission standard of 0.25g per kW; National V vehicles have an NOx emission standard of 0.18g per kW. 2. Different particulate matter (PM) concentration emission standards: National IV vehicles have a PM emission standard of 0.025g per kW; National V vehicles have a PM emission standard of 0.0045g per kW. 3. Different non-methane hydrocarbon (NMHC) emission standards: National IV vehicles have an NMHC emission standard of 0.3g per kW; National V vehicles have an NMHC emission standard of 0.23g per kW.
Was this review help?
6
4
Share
More Forum Discussions

Is Cadillac Fuel Efficient?

2018 Cadillac XTS, the official fuel consumption reference data provided by the Ministry of Industry and Information Technology is an average fuel consumption of 7.9 liters per 100 kilometers. However, the actual fuel consumption may vary depending on driving conditions and individual driving habits. Tips for saving fuel while driving: 1. Avoid prolonged idling or low-speed driving. 2. Avoid excessive vehicle load and a full fuel tank. 3. Avoid using high-viscosity engine oil. 4. Try to control speed with the accelerator rather than the brake. 5. Open windows less at high speeds. 6. Maintain the vehicle promptly. 7. Use the air conditioning appropriately. 8. Set the tire pressure reasonably. 9. Understanding road conditions is important.
20
3
Share

What are the French car brands?

French car brands include Peugeot, Bugatti, and Renault. Most of these brands have joint ventures in China, such as Dongfeng Peugeot and Dongfeng Renault. Establishment time of Peugeot brand: Founded in 1890, Peugeot is a sub-brand of the French PSA Peugeot Citroën Group, belonging to the early European enterprise brands. The brand is sold in over 160 countries worldwide. Establishment time of Bugatti brand: The brand was established in 1925. Actually, Bugatti originated in Italy. Later, when the Bugatti brand was sold, it was acquired by the German Volkswagen Group and the company headquarters was established in Molsheim, France. Bugatti is a world-renowned sports car brand, mainly producing high-end sports cars. The brand was founded by Ettore Bugatti. Establishment time of Renault brand: Renault was founded in 1898. The company is named after its founder, Louis Renault.
2
5
Share

What are the reasons for the electric tricycle horn not working?

Possible causes include poorly connected power wires, poor grounding, damaged relay, or a faulty horn. Below is relevant information: Electric Vehicle: An electric vehicle, also known as an electric-driven vehicle, is categorized into AC electric vehicles and DC electric vehicles. Typically, electric vehicles use batteries as the energy source, converting electrical energy into mechanical motion through components like controllers and motors, adjusting speed by controlling current intensity. Driver's License: The full name is motor vehicle driving license, commonly referred to as a 'driver's license,' which is a legal document required for operating motor vehicles. Driving a motor vehicle requires certain skills; lack of such skills may lead to traffic accidents if driving recklessly. Generally, individuals cannot drive on roads without a license.
5
1
Share

What kind of audio system does the Mercedes-Benz E300 use?

Mercedes-Benz E300 uses a Harman Kardon audio system with more than 10 speakers. Here is an introduction to car audio systems: 1. The most basic function of a car audio system is to reproduce sound. The car audio system mainly consists of three parts: the head unit, speakers, and amplifier. The head unit is the most important component of the car audio system. 2. The car audio system operates in a very complex environment, constantly subjected to electromagnetic interference from the car's ignition system and various electrical devices. Especially since all electrical devices in the car share a single battery, interference can be transmitted through power lines and other circuits to the audio system. 3. Anti-interference technologies in car audio systems include using choke coils connected between the power source and the audio system to filter power line interference, employing metal casing for shielding against spatial radiation interference, and installing specialized anti-interference integrated circuits in the audio system to reduce external noise interference.
19
3
Share

What is the battery model for the Ford Kuga remote key?

The battery model for the Ford Kuga key is CR2032. CR2032 is a lithium manganese dioxide battery, named according to the IEC standard. The breakdown is as follows: C - Indicates a chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode. R - Indicates the battery shape is cylindrical; if it were square, F would be used instead. 20 - Indicates the battery diameter is 20mm. 32 - Represents the battery height is 3.2mm. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity varies between 200-240mAh, depending on the manufacturer's quality. The shelf life of CR2032 is typically 5 years. If the manufacturer's production level is low or quality control is poor, the lifespan can be significantly shorter. Domestic first-tier brand batteries generally guarantee this lifespan. Under ideal conditions (sealed, room temperature, no moisture, etc.), the lifespan can extend further to 8 years or even 10 years. Generally, replacing a car key battery involves the following three steps: Step 1: Remove the mechanical key. Press the lock button on the side of the smart key to remove the mechanical key. Step 2: Open the battery cover. After removing the mechanical key, you will see a deep slot and a shallow slot at the top of the smart key. The deep slot is the keyhole, while the shallow slot is used to open the battery cover. Insert the mechanical key into the shallow slot and pry it open to reveal the coin cell battery. Gently push to remove the battery. Step 3: Replace the new battery. Insert the new battery, then reattach the battery cover and mechanical key in order to complete the battery replacement.
2
5
Share

Is Electric Vehicle Insulation Failure Serious?

Electric vehicle insulation failure can be dangerous. Here is the relevant introduction: Introduction: There are many aspects related to electrical safety, among which insulation failure may lead to exposure to high voltage, causing personal injury. The starting threshold is also minimally regulated. For pure electric vehicles developed by various manufacturers, the insulation resistance alarm threshold of the power system is determined based on their respective voltage levels. Another very important aspect is the insulation detection strategy and fault tolerance strategy. Driver's License: The full name of the driver's license is the motor vehicle driver's license, also known as a 'driving license.' According to the law, it is the certificate required for motor vehicle drivers. Driving a motor vehicle requires certain driving skills. Without these skills, driving a motor vehicle recklessly may lead to traffic accidents. Generally, individuals cannot drive on the road without a license.
2
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.