I have a 2003 Dodge Dakota and so far I have only changed it's oil once. In my old 1999 Dakota I used Wix filters and Quaker State 10w-30 oil. I was wondering what you guys would recomend for oil and oil filters for my Dakota. Is synthetic the way to go or not? Do I need a heavier weight in the winter (ex: 10w-40)? I would appreciate any and all info.