What should I do if the engine has too much carbon?

Generally speaking, 4S stores have professional cleaning equipment and detergents. If you have to save money, you can buy two bottles of gasoline additives at the gas station and add them to the fuel tank, which also has certain effects. But if there is too much carbon, it is difficult to clean it up in this way. It's best to go to the 4S store for inspection and cleaning. If it is particularly serious, only when the cylinder head needs to be removed for manual cleaning. This method is the most thorough.

In addition, the simplest way to avoid premature formation of carbon deposits is to drive at high speed frequently, and then drive at high speed after the vehicle is fully warmed up, with a speed of 80 km- 120 km/h, and it is advisable to drive at variable speed 1-2 times a week to avoid premature formation of carbon deposits in the engine. Also, if you have been using 92 # gasoline, you can add half a can of 95 # gasoline after using up this can of gasoline and the alarm light is on, and then drive at high speed, which will also be effective.