hey, I have a 94 auto, and have about 185k, and just changed to syn about 18k ago with no problems.
OCI's for me are about 6-7k, could go longer but i have a lot of mileage. if you have low mileage, you could probably go with dino for 6k.
I drive some mtn, and a lot of city, so Im in the severe category.
GL
[ February 07, 2005, 08:04 PM: Message edited by: Ankur ]