1, to improve the speed of the shift, such as the original speed when shifting 2000rpm, 2500rpm into a conversion, you can prevent the generation of coke, but also to protect the engine?

Ma director, said low-speed shift, is often said that "drag block", the car is easy to knock, resulting in incomplete combustion of gasoline deposits. But artificially shift speed is not necessary - it will increase fuel consumption and cause premature wear of clutch plate. Therefore, the manual transmission car, 1.6 ~ 2.0l displacement, about 2000 rpm shift is relatively affordable, no need to improve; and automatic car, be careful not to fierce fuel door.

2, car parking the car in neutral fierce fuel door, can run with the same high-speed erosion of carbon it?
In theory, idling fierce fuel door will wash away some of the carbon, but this method is not recommended. The first is a waste of gasoline and pollute the environment; secondly, the engine idling is not good. Especially the speed of 4000 rpm or more, if not running on the road, did not go in the wind to cool the engine, the engine will have an impact. Really rely on air flow flush coke, or to run high-speed now!

3, I heard remove carbon fuel chemical composition of the cleaning agent on the rubber supply line have a corrosive effect, it will not be worth the candle?

Eligible cleaner fuel than gasoline can better remove sump, fuel injectors, exhaust pipe deposits. Of course, these chemicals have a certain corrosive, 4s shop operation has provisions for the use, if not careful hands dripping is very powerful.

However, even if it is a three-drug, but the disease still have to take medicine life. The same token, by contrast, when needed or should use these products.

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