Yeah, Its not a bad deal but you can get formula shell or ST for about $1 more every day. If you look at rebates you can get M1 for $22 - $12 rebate and come out cheaper. Lets not think of the Rotella deals this year and the Idemimitsu and QSUD deals from last year. Far less than $10/jug on clearance.
not trying to po-po your post but letting you know there are better deals out there.