How to Open the Oil Cap?

[LaClayton]

For most vehicles, the oil cap can be opened by turning it 90 or 180 degrees clockwise or counterclockwise. Here is some related information about the oil cap: 1. Gasoline cap is too tight to open due to good sealing: If the car's oil cap is too tight to open, it is likely due to excessive suction. It's important to note that after the engine starts, it operates under a negative pressure state, creating a suction effect. If you don't have enough strength, you might not be able to unscrew it, especially for new cars where the gasoline cap's good sealing makes the negative pressure effect more pronounced. In such cases, simply wait until the car cools down, and the oil cap can be opened easily. 2. Unable to open due to negative pressure and over-tightening: To access the engine oil filler port, you need to open the engine hood. Sometimes, the car's oil cap cannot be opened due to negative pressure and over-tightening, but you can use pliers or go to a repair shop to use specialized tools to open it. Adding engine oil requires opening the engine hood.