What problems can occur if the car's oil cap is not covered?

1 Answers
DiEmily
07/29/25 6:26pm
Here are the problems that can occur if the car's oil cap is not covered: 1. Problem one: The engine noise will increase. 2. Problem two: The oil will be splashed out, dirtying the engine and hood. 3. Problem three: The crankcase forced ventilation system will fail, and the oil will be sucked into the throttle, then enter the cylinders, affecting power, increasing fuel consumption, and increasing carbon deposits. 4. Problem four: Dirt can enter through the oil filler port. 5. Problem five: As the oil decreases and dirt enters, it will gradually increase engine wear.
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