Engine Oil Leaks - Fluorescent Oil Additive Method
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If the factory fill engine oil with dye is present, change the engine oil and the oil filter prior to using the Dye-Lite® Oil-Based Fluid Dye (164-TP33200601).
Some fluid leaks are acceptable and considered characteristic of the component seal depending on the component, system or fluid it seals. These are called a weep or a seep.
Weep(s): A weep is detected under black light inspection demonstrating a continuous yellow (die color) trace at the gasket joint or seal surface and characterized by no detection of oil under white light inspection. A weep is incidental and not acceptable for fuel, brake or transmission lines. Weeps are acceptable for all other areas.