Same as you would with any car, Locate the drain screw usually on the
underside and allow some of the oil to drain out. Do not completely unscrew
as that would let all of the oil out!
I am not aware of a 2002 Ford Fiesta! In the US?
little breather on top of the rocker cover, pull it off and put the oil in.
30 psi
5w30 A1 semi synthetic or better still, fully synthetic oil. I use castrol magnatec 5w30 fully synth in my 2002 1.25 zetec and it runs sweet with it. Use a ford oil filter though.
6 qurts
4.3 litres including the oil filter
200MPH When you put a rocket on it :D
You need to put a key in the ignition and turn it.
6 litres
4 or 5 quarts
5 quarts
It will blow out the engine seals.