Combine oil, coke, wine, honey, ketchup, mustard powder, onion, and paprika in a food processor or blender.

Process until smooth.

Pour the marinade over the brisket.

Marinate the brisket overnight in the refrigerator.

Preheat oven to 350 degrees F (175 degrees C).

Place the brisket in a roasting pan with the marinade.

Cover loosely with foil.

Cook for approximately 4 hours, or until fork tender.

Remove the brisket from the oven and let it cool.

Slice the brisket against the grain.

Return the sliced brisket to the pan with the gravy.

Reheat before serving.

For a thicker gravy, pour the pan juices into a saucepan.

Add 1 tablespoon of flour to the saucepan.

Cook until the liquid is reduced by half.

Pour the thickened gravy over the sliced brisket.

Serve hot.