Yep, that's usually not a bad weight of oil. The caravan usually calls for 5W30, 10W30, or the newer ones use 5W20. If yours calls for 5 or 10w30, it's safe to use. However, if it calls for 5w20, it's usually safer to stick with that and don't go much heavier. Heavier oil will flow more slowly than the lighter oil so you want it to have the right viscosity or you will have less protection in your engine,
Yes.
Yes
10w30
10w30
5w30 or 10w30
10w30
5w30 or 10w30
5w30 or 10w30
5w30 or 10w30
5w30 or 10w30
10w30
3.3L and 3.8L use 5w20 4.0L uses 10w30