I've had my '99 for bout 4 months now. The oil & filter had just been changed at the dealer (per previous owner), and now I need to change it. I read the owner's manual and it says to contact the dealer for directions on how to change the oil. OK, need some help, as I would otherwise just drain it, change the filter, refill oil and go. What do I need to know folks? Also, do I use Mobil-1 or is there something else I should buy? And filter, head to my dealership? Thanks for help folks. Greg.............