Does a new car need running-in?

[DelTalia]

New cars do not require running-in, as modern machining processes have eliminated the need for break-in periods. Reasons for the break-in period: In the past, due to backward automotive production technology, car parts had lower dimensional accuracy and rougher surfaces, which prevented perfect meshing operation of transmissions and engines after installation and debugging. This led to the concept of a break-in period. Definition of break-in period: The break-in period generally refers to the initial operation process where mechanical components come into contact, rub against each other, and mesh together. In modern usage, it often describes the adaptation period when two things or organizations become familiar with each other's internal operations.