Why is there a significant deviation between the MIIT fuel consumption and actual fuel consumption?

[CameronDella]

The reasons for the significant deviation between the MIIT fuel consumption and actual fuel consumption are as follows: 1. Different testing methods: The MIIT fuel consumption adopts a standard cycle test method, where the entire testing process strictly follows the procedures, such as the duration of acceleration, constant speed, and idling. This test, introduced from Europe, differs significantly from real-world driving conditions, inherently creating a substantial gap. 2. Different measures taken: The MIIT fuel consumption is a crucial control indicator for manufacturers' annual vehicle emission reduction. Whether it passes or not depends on the test results, so it is unavoidable to take some targeted measures during the testing process.