Heard of this from clublexus via bitog, kmart clearing out gallon jugs of oil, $7 for synthetics and $4 for dino.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2507402&page=1
Sadly the only Kmart near me is not partaking, maybe someone here will have better luck. :)