Right now Autozone has some specials where you buy a brand of oil and you get a free filter. I know a few guys use the Mobil 1 Synthetic Oil and Mobil 1 Filter. Right now you buy the Mobil 1 Oil ($29.99) and get a free Mobil 1 Oil Filter ($12.99). For those with the Autozone rewards card you can do like me, I picked up 2 of these today and paid for them seperately and got 2 credits which gave me my 5 credits needed for my $20 credit, ill go back before the sale ends (May 5th) and pick up a 3rd one and it will only cost me $9.99 plus tax for my oil and filter. They got some other deals too, check out Autozones ad for more info on their specials. Hope this helps.