at pepboys. i don't have use for 5 gallons of the stuff, so i won't be hitting them up, but maybe this will prove useful to someone. from bobistheoilguy.com.
http://theoildrop.server101.com/foru...e=0#Post925726
the first form is the one you want, the one that lists a 5 gallon 15w40 castrol tection, not the buy 3 buckets of castrol tection, get the price of one back form lower on the page. the rebate is for 46.xx.
Mmm... never seen a 5 gallon bucket of oil at Pep Boys.