I'm planning to change the oil in my 2.0 dohc petrol tomorrow, the question is what grade of oil should I use?
I only ever use the top quality stuff and now my new engine is in I don't want to knacker it up with the wrong grade. When the new engine went in we put new oil (5w30 supplied by my local ford dealer) in and a new filter on, but the oil has gone a bit shitty after only a couple of thousand miles, and I thought that maybe we put the wrong stuff in.



