I recently got my 2014 Nissan Versa back from the dealership after inspecting the oil leak. They said it is the upper oil pan that is leaking. I have noticed oil dripping in my parking spot. From the video they sent me, the bottom of the car is coated in oil. I lost about a quart over a month period. Anyways, how can they tell if it is the upper oil pan gasket when you cant even see it? They quoted me at 2100 for parts and labor saying they will have to take the engine out of the car to replace the gaskets. I am going to replace the lower gasket and clean up the bottom on the 24th and see if that was the only problem. Does anyone have any advice or has this happened to anyone? I am at 117040 miles on my car.