i got some 15W-50 synthetic oil as reccomended in another thread, to put in my clio williams :-
my question is:-
is it best i drain the existing oil and use just just this, or should i just add it to the oil thats there ? (i dont know what the existing oil is, as i just got the car, *possibly* gtx magnatec)
and the oil gauge is nearly on the low mark...............does it matter if the oils are different types/ratings and they mix ?
[Edited by PoPe SmOkE on 31 July 2004 at 7:41pm]