How do you troubleshoot oil leak on 87 vw cabriolet?

To troubleshoot an oil leak on an '87 VW Cabriolet, start by cleaning the engine and undercarriage to remove any old oil, making it easier to spot the source of the leak. Next, inspect common leak areas such as the oil pan gasket, valve cover gasket, and oil filter for signs of oil seepage or pooling. Use a UV dye if necessary, which can help highlight the leak under a black light. Finally, once the source is identified, replace the faulty gasket or seal, ensuring all connections are tight and secure.