I buy most my automotive stuff at autozone mainly because of convenience. I run mobil 1 filters on my dodge cummins because they are not much higher than any other filter for that engine. I maintain my wifes 2000 malibu and my mom's 2001 crv. The choices for more resonable priced filters are bosch, stp, fram, and ac delco. Often, they are out of the ac delco for my wifes car. I won't use a fram. My choices are pretty much between the bosch and stp filters. Bosch is about five to six bucks and the stp is about three bucks. Between these two, which would yall use and why?