I was curious to know what wt oil of Mobil1 would most likey have the higher consumption rates between 5w-30 and 10w-30? 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 mobil1. 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.