yeah, the best bang for the buck oil change can be had at wal-mart: Motorcraft filter, 5qt and 1qt jug of Mobil 1. $5, $20, $5. $30 is decent for high-quality stuff. I use a K&N filter, and run 6.5qts, so I pay about $45 after tax per change, more if I can't get to a Wal-Mart and have to buy 7qts in the little bottles: $5x7 + $12 + tax = $50! Ouch.
