Where could the oil leakage at the bottom of a car come from?
2 Answers
It is usually caused by a scratched fuel tank. Below is relevant information: 1. General classification: Fuel tanks can be divided into two types: open tanks and closed tanks. Open tanks have the liquid surface inside connected to the atmosphere, and an air filter is installed on the tank cover. Open tanks have a simple structure and are easy to install and maintain, making them commonly used in hydraulic systems. Closed tanks are generally used for pressurized tanks, filled with a certain pressure of inert gas, with a charging pressure of up to 0.05MPa. 2. Classification by shape: They can also be divided into rectangular tanks and cylindrical tanks. Rectangular tanks are easy to manufacture and convenient for placing hydraulic components, so they are widely used; cylindrical tanks have high strength, are lightweight, and easy to clean, but they are harder to manufacture and take up more space, often used in large metallurgical equipment.
Oh, I've had this issue with my car too. When diagnosing an oil leak, first check the color and location. Thick black oil is mostly engine oil, possibly leaking from the engine oil pan due to a worn seal or damage from hitting a curb. Red or brown oil is transmission fluid, which might leak in the middle of the vehicle due to loose connections or failed seals. Clear, water-like fluid is brake fluid, often leaking near the wheels due to pipe ruptures. If the oil is sticky yellow with a metallic smell and leaking at the rear, it could be a differential issue. Location is key: the front usually indicates engine issues, the middle points to the transmission, and the rear suggests differential problems. Checking is simple: place cardboard under the leak after parking and observe the stain characteristics. Ignoring it is risky—low engine oil can cause overheating and engine damage, while leaking brake fluid directly threatens safety. Don’t skimp on repairs when needed.
