How to Unscrew the Engine Oil Cap?

1 Answers
Theodore
07/30/25 4:44am
Method to unscrew the engine oil cap: Rotate it 90 or 180 degrees clockwise or counterclockwise to open. Car owners can try it themselves. If it cannot be opened, refer to the manual. After opening the engine hood, you can see the cap of the oil filler port, which is used for adding engine oil. During maintenance, this cap needs to be unscrewed to add new oil. Engine oil, motor oil, or engine lubricant is a substance enhanced with additives in base oil, mainly containing anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. Engine oil is used for lubricating internal combustion engines. Its primary functions are to reduce friction and wear of moving parts, and to remove sludge (one function of dispersants) and varnish (function of detergents) from the engine.
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