Bottom of the oil pan.
The original engine oil drain plug wrench size should be 15mm.
on the bottom of the oil pan
counter-clockwise
It is underneath the car at the rear of the oil pan next to the drain plug.
Bottom of the engine next to the drain plug
From the right side of the bike, get down and look underneath the area where the gearbox is located, you will see a drain plug in the middle of the gearbox casing (obviously for the gearbox) and nearer to the outside of the bike there is a same size drain plug in a small down tube which is open at the bottom and is connected to the oil tank.
Place a drip pan beneath your engine oil pan. Remove the engine oil plug. Allow the old engine oil to drain out. Remove the engine oil filter, by turning it to the left. Fill the oil filter with oil and return it to its original position. Put the oil pan drain plug into its original position and fill the engine with new motor oil.
An ACDelco PF47 is an original equipment oil filter for that 04 Impala 3800 engine.
I have a sportster and it doesn't have a drain plug. It has a drain hose that is located under the engine and is connected to the rear pipe mount on a stud with a small hose clamp. Loosen the hose clamp and just pull the hose off the stud and the oil will drain. Don't forget when replacing the oil to put about 4 oz into the filter before putting it on and make sure the oil starts to come out of the drain hose before reconnecting it to the stud or the oil will get vacumed similar to vapor lock. Hope this helps.
all you do is undo the nut on the bottom of the sump and drain the oil
Have to drop the transmission oil pan
To change the oil pan in a 2004 PT Cruiser, first, ensure the engine is cool and disconnect the battery. Drain the oil by removing the oil drain plug, then remove the oil pan bolts and gently pry the pan loose. Clean the mating surface, apply a new gasket or sealant, and reinstall the oil pan with new bolts. Finally, refill the engine with oil and reconnect the battery.