On my signature 2007 Kia Sedona - the 3.8L V6 takes a cartridge filter that fits in it's own housing under the engine shroud . It seems that no matter the OCI I run the oil filter (Fram Ultra) when removed has very little debris build up between the pleats and weigh the same as when they went in . Conversely , a canister oil filter (Fram Ultra) used on my other vehicles always come out saturated and are quite heavy in weight after an oil change . This leads me to believe such cartridge oil filters really are not that efficient and perhaps only catch the largest of debris particles ... Your thoughts and experiences ?