Went to AZ yesterday to pick up some GC before the rebate ends at the end of the month. AZ wanted $6.19 per quart. I got 7 quarts with tax came to $43.33. Minus $20.00 Autozone Rewards rebate card, minus $10.00 Castrol rebate, minus the $4.00 credit for the qualifying AZ Rewards purchase equals $9.34 divided by 7 equals $1.34. I love playing with AZ Rewards program. The local AZ is 2 blocks from my house and I drive right by it every day coming home from work. I maintain 5 family vehicles, so whenever I have work on them coming up, I stop by and buy just enough to cover the $20 requirement for the rewards program. That way I get almost 20% back on all my maintenance costs. BTW my AZ always has plenty of GC. I even saw some American made for the first time, but I have yet to find any green.