How to Open the Engine Oil Filler Cap?

[LeCassandra]

Method to loosen the engine oil filler cap: Slowly turn the oil filler cap counterclockwise to loosen it. During normal oil change operations, when reinstalling the oil filler cap, apply some oil from the dipstick to lubricate the cap opening, then smoothly tighten it in the clockwise direction until properly seated. If white smoke appears around the oil filler cap, it may indicate that the cap is not tightened properly or is damaged, allowing water vapor to escape. Recommendations: 1. Check if the oil filler cap is tightened correctly, damaged, or if the sealing ring is missing; 2. Test whether the oil's water content exceeds the standard. Engine oil, as a lubricant, serves multiple functions including lubrication and wear reduction, auxiliary cooling, sealing and leakage prevention, rust and corrosion protection, as well as shock absorption for the engine.