If you wait a week or two they will go even lower. The shelf tag was $42 for 0w20 and 5w20 but they rang up as $35 and $29, respectively.I stopped in today at my local Wallace Mart and found they had 1) 5W30 and 6) 0W20 boxes of 12 qts Mobil 1 on markdown for $40.
Even though I didnt need any I bought one of each (I would have bought more 5W30 but they only had one)
boys have each claimed one of them.
I have satisfied my bargain hunt for a little while.