How to Tell if the Coolant Cap is Tightened Properly?

[Zachary]

When you hear a click sound and can't turn it anymore, it means the cap is tightened. Additional information is as follows: Consequences of not tightening the coolant cap properly: There will be many white marks on the cap; Coolant may leak out, and over time, the coolant level will drop. If the owner doesn't notice this in time, it may cause the engine to overheat. Precautions when adding coolant: When adding coolant, be careful not to let it come into contact with your skin, as the ethylene glycol in the coolant has solvent and corrosive properties. If it accidentally splashes onto your skin, rinse immediately with clean water to avoid skin damage. Coolant comes in different colors, mainly for easy identification and distinction; secondly, to serve as a warning to prevent accidental ingestion.