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Showing results for tags 'looking for signs of metal particals.'.
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Disclaimer: this list may not be up to date or complete. I've been curious about which brand of oil filter is best for our cars. Sifting through all the advertising hype and them deciding what to buy is mind blowing. The more one looks, the more one's mind get confused. What I found was that there are only a few manufacturers of oil filters and unfortunately that list is not totally up to date. Companies get bought and sold constantly so it's hard to keep up with who owns who. The main players seem to be Champion Labs, Honeywell, Dana/WIX and Purolator. That list may have changed since it was published. For example, Champion Labs make (or made) AC Delco, Bosch, Deutsch, STP, K&N Mobil 1. Honeywell; Fram, Pennzoil, Quaker State. Purolator; Bosch, Motorcraft, Powerflo, Proline, Purolator. Dana/WIX; Carquest, NAPA, WIX. Again, this list may not be as it is today as it was complied in 2008 and the latest I was able to find. As for the best, Royal Purple was on top, followed by WIX, NAPA. The Fram line surprised me, not the filters they once were. The Motorcraft FL1A was about 5th on the list rated at 93% at 20 microns. As I typically have used Motorcraft for looks as well as being a good filter, I decided to cut apart the filter I just removed to see just what was inside and if there was any evidence of metal particles. I will admit, this was not done very scientifically as I basically just cut it open with shears. I could have washed it out through a coffee filter, but instead just used a paper towel and magnet. Happy to say I found no sign of anything foreign. Here are some pics. The filter was well constructed, but the pleats could be better spaced.