To remove the oil pan, first take off the cable from the battery negative terminal. Demobilize the parking brake and lock the rear wheels, at this point lift the front end of the car and place it on TWO jackstands. If so, then get rid of the engine splash shield, dispose of the engine oil and also the oil filter, and, ultimately, the oil dipstick. Subsequently, eliminate any disturbing factors; The oil pan is made up of an upper cast aluminum portion and lower stamped steel portion, which are separable. Loosen the lower oil pan with pry bar carefully to prevent the damage of the mating surfaces of the pan and the block. After that, unbolt and separate the upper oil pan by carefully pulling it apart and noting that the bolts come in different sizes and if it is jammed then rock it slightly to come off. As for the installation, it is important to eliminate the previous sealant and clean the block and the oil pan with a scraper Then you have to cover the mating surfaces with the help of lacquer thinner or acetone. Threads made on the block must be free of any dirt and the oil pan flange examined for warping, filing, and deburring the matching surfaces if required. Place an RTV sealant on the lower mating surface of the oil pan, in 3/16 inch width, and fit the former within 15 minutes of application; fix the upper oil pan on the engine block without tightening the bolts properly. Torque the oil pan-to-engine block bolts from the center of the circle toward the outside to the same torque spec and then continue , tightening the lower oil pan bolts in several passes until it reaches the same torque spec. Last, start the engine inspect for the oil pressure when the engine is on, and further inspect for any signs of oil leaks.