Are some claimed OE replacement oil filters really satisfactory? MANN-FILTER Engine Oil Filters... What You Should Know! This is the title of the video. Posted: 220406 Keith Belcher has sent in a link to a fascinating video where Frank Massey demonstrates the features of the good quality replacement oil filters produced to OE standards and compares them with cheaper filters. It's a detailed video which shows just how some marginally cheaper filters have poor quality filter media and other undesirable features. Choose a good quality replacement oil filter with care. It's a 22 minute video but one that holds your attention as a skilled engine builder reveals the inner parts of both a good quality and a cheaper oil filter in careful detail. Most classic car owners would not have seen this detail and in many cases they my be unaware of it and the significance for the engine and wear rate. It's an eye-opener - just follow the video link