What kind of oil filter do you guys use?

Wix are still made in the USA for most domestic applications. There are cartidge filters and other non canister filters out there that arent made in the US because there simply not made here by anyone. I can also tell you since Advance aquired Carquest there filters are not made by wix. They are made by Puralator and are not the same quality. Both Napa and O'reilly's house brand are made by Wix. Napa Gold is supposed to be the same as a standard wix and both the Microguard ( O'reilly ) and the Napa silver are the second tier filter both with anti drainback valves but less pleating. Good filters imo over fram, puralator, stp and other bargin brands.