This may sound odd but go to a parts store and physically pick up all filters, the heavier ones have more pleats and "theoretically" should filter out more particulates. If going mail order Wix and Bosch make a great product which may not be the most cost effective way to go but you know what you're getting. If you mail order Rock Auto has the WIX 61186 for sale for $4 and the BOSCH 72214WS for $4.90. Happy oil changing