If it's not in the glove compartment, check with the seller to see if they still have it. If not, check with your local dealership or check on a site like eBay.
your owners manual will tell you.
look in your owners manual.
can't, you will have to order one at the dodge dealer.
owners manual should show it.
Look in your owners manual.
check your owners manual.
Look in your owners manual.
look in the owners manual.
The easiest place to find all of that information is going to be in the Owners Manual.
Unless it calls for premium gas in your owners manual your wasting your money using premium.
look for a blown gauge fuse in the fusebox, check your owners manual for fuse placement.
look in your owners manual or under the hood as there should be a routing diagram for your vehicle.