I have just realised that I have a Moroso oil pan looks standard but apparently has 6 quarts volume. Does any one know if these oilpans have any ident number on them visible from outside. I have the car a year now and did an oil change but only filled the standard all out 5 liter. I need to know if I actually need to fill more oil into that pan. sounds stupid but I still discover new things on my car every day.