Originally Posted by brandonjr36
Ok i got a question. I talked to a ford dealer and he has a 04 f150 with the 3v and he says he runs 10w40 and his noise pretty much went away but other people say dont do it.
Dealers will say a lot to make an extra buck. I've seen many different oil usage from peeps here, but if you're not too sure, I'd stick with 5w20 or 5w30.