Originally Posted by
Rich170
If its a focus RS as per your sig, surely thats WAY too thick, should be 5w30?
who the hell told you that, its 5w40 ford fully synth is the spec for all the focus RS cars, 5w30 is for the normal zetec
why not not just do a full oil change,, mobil one is still a very good oil even though the internet salesman prefers silkolene