How do you check for an oil leak?

To check for an oil leak, start by inspecting the ground beneath your vehicle for any signs of oil spots or puddles. Then, visually examine the engine and oil pan for any signs of oil residue or wetness, paying close attention to the seals and gaskets. You can also check the oil level on the dipstick; a significant drop in oil level may indicate a leak. If you suspect a leak but can't find it, consider using UV dye in the oil, which can help to identify the source under UV light.