Pull the gearbox or the engine?

Pulling high speed means pulling the engine, and the gearbox will not accumulate carbon. In fact, the purpose of increasing the speed is to remove the carbon deposit of the valve, and increasing the speed irregularly can reduce the carbon deposit of the engine. Pulling up the speed is to make the engine run at a high speed of more than 4000 rpm. Using the glue accumulated in the high-pressure impact cylinder valve of its atmospheric valve, the formation of carbon deposits in the engine can be prevented and reduced.

To solve the problem of carbon deposition, we must first understand the causes of carbon deposition. At present, the cylinder of EFI engine is injected first and then ignited every time it works. The moment the owner puts out the engine, the gasoline ejected from the cylinder always burns at the end of ignition. After the gasoline remaining in the cylinder, valve and combustion chamber volatilizes, the residual gum and paraffin wax accumulate thicker and thicker, and harden after repeated heating to form carbon deposits.

It is not impossible to pull up the expressway with the first gear and the second gear, but it is a waste of fuel, usually at high speed.

Just pull it when running on the road, so that you can clean the engine at high speed after the journey.