What Causes Oil Leakage Under the Car After Parking?

2 Answers
StAdam
07/24/25 8:00pm
The reasons for oil leakage under the car after parking are: 1. The car chassis has been impacted, causing damage to the oil seal; 2. Aging of the fuel tank sealing ring; 3. Substandard assembly of car components; 4. Excessive engine oil; 5. Damage to the front and rear crankshaft oil seals of the car. If the oil leakage is severe, it is necessary to promptly visit a repair shop or 4S store for professional inspection and repair to prevent potential safety hazards during vehicle use. Precautions for the car chassis include: 1. Regularly clean the car chassis to prevent debris from adhering to it and affecting normal driving; 2. Slow down when passing through uneven road sections to prevent the chassis from being impacted.
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McLane
08/11/25 10:58am
That day, I had just parked my car when I looked down and saw a puddle of oil on the ground, and my heart skipped a beat. I quickly crawled under the car to take a look and found that the engine oil pan was leaking. I've encountered this situation a few times—either the bolt wasn't tightened properly during the last oil change, or the oil pan gasket has aged. My friend's old Passat was even worse; the oil pan cracked when it hit a pothole, leaking like a floodgate. If the power steering hose ruptures, it can leak red fluid, and if the transmission oil seal fails, it can leak thick reddish-brown oil. Once, at a highway rest stop, I saw a car leaking engine oil, and the driver actually used soap to temporarily plug the leak before driving to the next repair shop. These issues can range from minor to serious, so it's crucial to check the dipstick level immediately. If the leak is severe, call for a tow truck—otherwise, engine seizure could lead to major losses. I recommend first wiping the leak point clean and checking the seepage location after half an hour to easily identify the source of the problem.
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