It looks like Mobil 1 is having a sale. I was just in Advance Auto and their price is $8.99/qt for 4T, regular price $11.69....about the same as Autozone. Might be time to grab a couple of extra qts.
not sure if this is a deal or not cause i can never remember how much i pay for a qt of oil but...i just did in-store pickup at autozone (cause i hate when i go there and they don't have what i need) for 5qt of mobil 1 4t for the TW and Bonneville and it came to $47.76 total ($2.81 of that is taxes)...there was a $10 discount on motorcycle oil included for some reason...~$9.55/qt...just figured i'd pass it along...i checked walmart too but it's not available at my store and your can't do in-store pickup for it but it was $9.97/qt before taxes anyway
Oil shelf life is longer than I let it sit. Check with local oil distributors for case prices.