First, let me start by saying this is my first Mopar. This car has a 3.0L, and I've been given different advice on oil to use. I typically go with Pennzoil, but am open to suggestions. One person told me to use 5w/30, while someone else said 15w/30. I use 5w/30 in my wifes Taurus, which has a 3.0L. Any ideas? Thanks Steve