do this on flat ground
pretty much all there is to it is warm engine slightly so oil flows out freely. remove sump plug over the oil catch pan/cut up old container and let the lot run out
as its coming out, remove the fuel rail guard to ease access and unscrew the oil filter from the front of the block. use a tool if needed as may be tight
clean up the mating face on the block if needed, get new filter and run a small amount of new engine oil on the rubber seal and screw into place. do up hand tight, do not overtighten it. leave fuel guard off for now.
refit sump plug with a new washer (if you like, or reuse old one).
remove oil cap from top of engine and slap about 4-5 litres in. wait for a minute for it to accumulate in the sump and check level with dipstick
top up to just under the top notch on the dipstick and refit oil cap.
car in neutral, turn on engine and let the oil run round for a while and check the new filter to ensure no leaks.
turn off, let settle and check level again
if happy refit the fuel guard and done
take old oil to the tip