I see Walmart has the cartridge style oil filters for some cars. Like the 2.2 Saturn ecotec motor but NOT the 3.0 motor. I reckon there are few 3.0 Saturn motors on the road. But Walmart got rid of their house brand filters anyway so all they carry now is fram and they charge the same price as oreilly or autozone. No money to be made in auto parts. Gotta sell flat panel tv's I guess.