Not using UV light (black light)
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Gather some of the leaking oil using an absorbent white tissue.
- Take samples of engine oil and ATF (or transaxle/transmission oil), both from the dipstick, and place them next to the leaked oil already gathered on the tissue.
- Compare the appearance and smell, and identify the type of oil that is leaking.
- Remove any oil on the engine or transaxle/transmission.
- Allow the engine to run for 30 min.
- Check the area where the oil is leaking, then make necessary repairs.