Stopped in this morning to my local Advance Auto to hoard more of the Rotella Gas Truck Motor Oil that they have marked super low for the full synthetic oil. Asked for the manager -- pertaining -- picked up 10 single quarts on Sunday and they were already in a box waiting for me. I ordered online 10 quarts of 0W20 and when I got home to put them away -- 8 quarts were 0W20 and 2 quarts were 5W30. So I asked for the Manger to exchange the 2 quarts of 5W30 for what I originally ordered. Moving forward, Manager had no problem with doing that and told me -- " you know, you cant run this oil in a car -- its specifically just for trucks!!!" I just smiled at him -- grabbed my other box of 10 quarts of 0W20 -- which I looked at each quart before I left and rolled out. I would think being a Manager at one of these locations -- you would have some kinda overall knowledge of who and what is going on with pretty much all aspects of cars and trucks???