What do China III, China IV, and China V mean in cars?

[LaGianna]

China III, China IV, and China V are emission standards. Here are the specific details about China III, China IV, and China V: Definition: The engine displacement is an important parameter for measuring a car. The space volume that the piston passes through when moving from the top dead center to the bottom dead center is called the cylinder displacement; if the engine has several cylinders, the sum of the working volumes of all cylinders is called the engine displacement. It is generally expressed in liters (L). Engine displacement is one of the most important structural parameters, representing the size of the engine more than the cylinder diameter and the number of cylinders. Many indicators of the engine are closely related to the displacement. It is generally expressed in liters (L). Engine displacement is one of the most important structural parameters, representing the size of the engine more than the cylinder diameter and the number of cylinders. Many indicators of the engine are closely related to the displacement.