My biggest motor oil fear is that I will have to pay retail price.
I actually did that last month, and it was hard to do.
I bought a motorcycle and needed 15w-40, and had none in my stash, so I had to pay $10 for a gallon of Supertech.
That has been remedied thanks to the Peak 15w-40 Syn-blend clearance at AAP (7 gallons for $21 total)