I have a 2010 fusion 3.0 v6 and a 2013 mustang v6. Both need a quart at around 5 thousand regardless of oil used. Have used edge ti , m1 ep, and pop all in 5w20 in the fusion. Used ultra, black bottle edge, and currently vsp in the stang, all in 5w20. I know engines can use some oil but I...