I do oil changes for some friends who own Toyota and Lexus SUV's that take cartridge oil filters. They are generally a pain in the butt, but I have an opportunity to buy a case of the ACDelco PF2259 filters for $2.50 each. I believe they are made by Champion Labs and are definitely USA made, as printed on the carton. For 5,000 to 7,500 mile change intervals, what could be bad about them? Has anyone used any other ACDelco branded cartridge filters?