There is oil in the accelerator. What is the reason?

It is normal that there is oil in the throttle of Pacific Auto Network. There is oil in the throttle valve, and the exhaust gas from the engine is recirculated and discharged into the air intake. During the operation of the engine, the combustible mixture will run into the crankcase, and the exhaust valve is connected with the intake pipe, so that the excess exhaust gas will enter the engine through the exhaust valve and burn again.

It's normal to have oil on the engine throttle, as long as it's not too much. Engine throttle oil mainly comes from engine exhaust gas. During the engine operation, some combustible mixture will escape from the cylinder gap to the crankcase. If these exhaust gases are not discharged into the engine, the pressure will increase, so all engines have exhaust valves to discharge exhaust gases.

After the car travels to a certain mileage, the throttle will have different degrees of dirt, usually at the throttle flap. Too dirty throttle will cause engine idling instability and jitter. General vehicles can be inspected and cleaned for 20,000 kilometers. As long as it is not particularly dirty, don't pay attention to it, and don't approve of cleaning the throttle when you find a little oil.

The valve is a controllable valve that controls air to enter the engine. After air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, thus forming combustion work. It connects the air filter and the engine block, and is called the throat of the automobile engine.