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 check it and no usage, check it right around 5 grand and boom, needs exactly a quart. The only oil that didn't use was in the first run of black bottled edge in the stang. Is this the new sn rating oils burning off faster or just not a bug deal regardless?