Does the old dirty oil quality of automobile throttle matter?

You can check the liquid level by dipstick, as long as the liquid level is above the middle. The dirty speed of the throttle body is related to the intake quality, so the air filter element should be cleaned frequently. Under normal use, carbon deposit will definitely appear in the cylinder. Of course, the normal combustion cylinder will not have too much carbon deposit, so the combustion chamber can be cleaned without disassembly. If the position and dynamic balance of the tire change.

2.

This is very important. Good engine oil is stable, non-volatile, and it is not easy to condense at the throttle to form liquid engine oil.

3.

The oil won't drain, and the bottom of the oil is dirty. Take it apart and clean it.