I've Never Heard That Rule Before But No Matter Every Car I Buy Get A Service Kit As Far As The Filter I Have Never Change Oil With Out Changing The Filter Too I Don't Know It's Kind Of Automatic Change Oil Change Filter You Mean People Change Oil With Out Changing The Filter That's Just Plain Stupid That Defeat The Purpose Of Changing The Oil You Might As Well Not Even Do It I'm not saying My ways the right way It's just the way I do it you guys have a merry christmas