5w30
5w30 or 10w30
Green
10w30
10w30
If it's the same type of transmission that came from/is going on the same engine, yes.
5w30
5w30 or 10w30
5w30 or 10w30
DOT 3
Mopar ATF+4
It will depend on the engine. Either 5w30 or 5w20.
Mpg will vary depending on the Caravan year and engine type. The 2014 Caravan gets 17mpg city and 25 mpg highway estimated.