Changing an oil filter should be done after the oil has been drained. Try loosening the oil filter with a chain wrench. If needed puncture the oil filter to create a shaft impaling it creating leverage. Attach a new filter, close the drain plug and refill with oil.
The oil filter for a Hyundai Getz is on the drivers side of the engine. The filter is midway between the front and back of the engine.
5,9 liters
Believe it or not it is in the Owner's Manual.
The engine oil capacitie with oil filter change is 4.5 QTS
4.23 Quarts
4.5 Quarts with filter change
5.49 qts with filter change
The Valvoline Oil Filter is V05.
According to the owner's manual, 4.2 U.S. quarts with new filter. (The filter should be replaced at each oil change.)
The oil filter and sump for the 2007 Getz at least can be found at the bottom of the engine bay. You have to get under the car so ensure the hand brake is on. The filter is under the engine, on the driver side of the car but not too much off centre. It is partly hidden by a plastic shield which can be taken of with the help of your 10mm socket and extension. But not absolutely necessary to remove the plastic shield. The sump is directly behind that (towards the back of the car), and the plug is on the rear of that, sitting at a slight angle. Have fun
The 2001 Elantra take 4.5 qts with filter change
Not necessary but never a bad idea if possible. Just never overfill the engine.