* Oil Pan Gasket: The oil pan gasket is a common location for leaks, especially if it has not been replaced recently. As the gasket ages, it becomes brittle and can start to crack, allowing oil to seep out.
* Oil Filter: Sometimes, an oil filter that is not screwed on properly or has a defective gasket can be the source of a leak.
Ensure that the oil filter is secure and seated correctly; it may need to be tightened or replaced with a new one.
* Valve Cover Gasket: The valve cover gasket seals the joint between the cylinder head and the valve cover. If this gasket fails, oil can leak out from between the two surfaces.
* Timing Cover Gasket: The timing cover gasket seals the joint between the timing cover and the engine block. If this gasket fails, oil can leak out from the front of the engine.
* Rear Main Seal: The rear main seal seals the gap between the crankshaft and the engine block at the rear of the engine. If this seal fails, oil can leak out the back of the engine and run down the transmission case.
