I was curious to know what wt oil of Mobil 1 would most likey have the higher consumption rates between 5w30 and 10w30? I hear that the noak #'s can reveal a little information on consumption and burn off but I can't seem to find much info on this with Mobil 1. I just can't really decide on which of these two weight to use if the weather never gets below 15 deg F and I want the least amount of consumption. Thanks for any input guys.