the easest way is to jack up the car make sure you use a jack stand for your saftey and under neeth the car there is a bolt known as the oil drain plug lossen it and let alloil drain into some kind of container then after all oil is drained make sure you put the oil drain in tight locate your oil filter and loosen it by hand if you cant loosen it by hand go to your local parts store and get a proper oil filter wrench take it off the car and put your new one in make sure you get it tight inspect everything and put the proper oil and amount in the oil fill