I have an 09 built 04/09 and it takes the 500. I really thought it was an 09 thing,but I guess not if you have one on an 08. The first time I changed the oil, I checked the owners manual for the filter requirement, it said FL 400 S. I went and bought it and the oil, got the car on the rack, drained the oil, removed the filter {which had no number on it}, primed the new filter, tried to screw it on and--well you can guess the rest of the story. It would have been nice if the owners manual could have been edited to show this change.