You need to find where the oil is coming from. Get a spray bottle and mix a Rich solution of dish soap and water. Spray down everything you can see oil on and then with a pressure washer or hose rinse everything off. Repeat until you no longer see any oil residue. Dry throughly with compressed air or leaf blower. Now you have to be a detective and run the unit constantly looking for an oil trail. This may take 5 minutes or 2 hours. Report back what you find, along with engine model, code and type numbers.
