I run the Chevron supreme from Costco. @$25 a case when it's on sale it's s heck of a deal on good oil. I run the K&N oil filter because it's ~$10, it filters excellently, it flows perfectly, and their quality control is great. Other filters may work as well for less, but I just stick with what has been proven for me to be a good combo. I change every 3k miles without fail.