Where is the oil drain plug on a 2005 Jeep Grand Cherokee?

there is a bolt on the bottom of the oil pan on the passenger side it is a 15 mmWhere is the oil drain plug on a 2005 Jeep Grand Cherokee?
Under the vehicle in the oil pan.Where is the oil drain plug on a 2005 Jeep Grand Cherokee?
its a 16 mm plug on the back side (toward the rear of the car)of the oil pan. the oil filter is on the passenger side of the engine on the straight 6, 4.0 liter. and on the front of the engine on the drivers side on the v8's
probablably on the oil pan under the car go to autozone .com and see if this web site will help good luck