The knight's frustration is very serious. Why?

The knight's frustration is very serious for the following reasons. First, the engine oil system is faulty. Second, there are more carbon deposits in throttle, injector and air inlet. Third, the valve of the carbon canister battery is faulty. During the running-in period of a new car, it is normal for the car to have a slight sense of frustration while driving. Chevrolet Cavalier's English name Cavalier, which means "Knight", comes from Chevrolet Cavalier, the best-selling compact model of GM in North American history, and was officially listed at Chengdu Auto Show on September 2, 20 16. Chevrolet Cavalier has exquisite interior, dress-cut seat shape, more comfortable package, and 20 storage spaces in the car, which is very convenient and practical. The design is also very dynamic, with double-layer front grille and internal gradient texture, which is fashionable and novel and highly recognizable, and is deeply loved by consumers. Million car purchase subsidy