I did the first oil change on my 09 Base Fit Today. Car had 5,297 miles and the oil life was reading 50%. In all my cars I change the oil and filter at 3K miles (dino) or 5K miles (syn).

Anyway, I use Filter Mags on all my cars. I never cut open the filters before to check how much metal particles they "actually" pic up bc I just like to get the job done and I like to spend the extra time cleaning the engine.

Today I cut up the OEM filter with a dremel. The pics show that the Magnet picked up a ton of metal particles (look at the bars where the magnet lies).

However, I am not sure if the high speed cutting of dremel contributed to all, most, or some the metal particles that are shown in the pics. The good news if that even if they were created by the dremel while I was cutting the filter open, it's good to see that the Magnet does trap the metal particles since they were only concentrated where the magnet was.

I was hoping this would have been my last time cutting open a used filter just to check of the Magnets work, but since the dremel created so many small particles while cutting, I may cut open another the next oil change with a hand saw. We'll see.

BTW, the Honda Oil Filters once cut up don't seem too bad at all. Large filtering media, nice rubber throughout, and over all looks to be in great condition considering it's been on for 5K miles.


Cutting the Filter Open:



Opened:



The rectangles are in the shape of the Magnet. They can clearly be seen because they have small metal particles attached.





Filter media looks good IMO.



I think this is the anti-drain back valve. It almost didn't want to come out because it kept sticking to the magnet LOL.



Job complete, Filter Mag placed on new filter, and the underside of my Fit is cleaner than before the oil change.

 

Nice dissection. Instead of a hacksaw next time, try a pipe cutter or an oil filter opener.


Although, I wouldn't buy it from cancutter.com, because theirs is rather expensive. Go to an auto-zone/advanced/autoparts store and get them to find you one. It opens in a manner similar to a can-opener, so you don't have all that grit from the saw-blade.

The anti-drainback valve is actually that piece of orange nitrile rubber.

The springy thing, is the pressure release valve.



Do you think that the magnet actually helps any? 30 microns is a really small piece of metal.

 

Summit Racing makes one:
Summit SUM-900510 - Summit® Oil Filter Cutters