Since I bought my 99 GTS used, it didn't have the owner's manual (shame), but from the many many threads I've just read through it appears the 99's had a 8.5 qt oil pan. 2000+ they went to the 10 qt pan. I won't start the age old battle of which oil to use and just go with the factory Mobil 1 stuff. The convenient fact is my wife's Mercedes takes Mobil 1 0W-40 anyway so there is a bulk buy opportunity for me going with that anyway. What I haven't crawled under my car yet to check is how to drain the oil. Right off the bat my natural inclination is that there is an oil pan plug I can pull, but when I was reading through some of the threads there was a post where someone indicated the oil pan torque specs... surely I don't pull the whole pan to drain the oil do I? Someone please tell me these things have a plug.