How do I tell if I have torque on demand or ESOF? Thought I saw that if I have the 4-position switch for 2W/AWD/4H/4L, that it's ESOF and therefore Mercon LV? Threw me for a loop that I bought transfer case fluid and the saw the big white sticker to use LV. Was also wondering if this was replaced at some point given condition and fluid looking brand new red.