I work the Commercial parts counter for Advance Auto. When they have those sales I sell the guys the Oil change and get them a Purilator Filter for the car of choice And the Mobile filter for another car... still a great deal. That or if it is getting close to deadline of sale and their out of them, write a rain check for it so it is still valed when they get the filters in!

by the way, that is a smoookin deal and Advance put it on sale about every 3rd month!