where does the oil leakage usually be at in a car? on 2001 Toyota Corolla

my toyota car is leaking oil and i dont knw where the leakage is..it been a month nw since it started..plz help and tell me where the possible leakage coulbd be at.thank you

Asked by for the 2001 Toyota Corolla
4 answers
It could be leaking anywhere I would wash the engine off real good and run the engine to see if you can find the leak a common place to start is your rocker cover gasket
AGREE WITH #1 BUT CK VALVE COVER GASKETS BOLTS AND TIGHTEN AS REQ.
Have a shop test it using uv sensitive dye in the oil. Mechanic can detect/locate the leak using a black light. No guesswork!
Check for the leak at the oil pressure sensor also.