The 2005 Nissan VQ40DE V6 in the Frontier and Pathfinder recommend a few oil weights 5w30, 10w30, 5-40 or was it 0-40? I can't recall anyway my 2012 Nissan Pathfinder with the same motor only recommends 5w30? According to what I am reading there were no real changes to the motor so why the oil change recommendation? I have no idea about the years between 05-12.