http://www.shopfiltermag.com/tech.php

Seems very interesting. I know I've played with Neodymium magnets out of hard drives and they are extremely strong!!

Steep investment though...

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k

Interesting. I don't see though where you'd put it on a 240D. Outside the cannister? Is the cannister even magnetic? No room inside it....
Guess it might work with exposed filters.

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You're a daisy if you do.
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84 Euro 240D 4spd. 220.5k sold
04 Honda Element AWD
1985 F150 XLT 4x4, 351W with 270k miles, hay hauler
1997 Suzuki Sidekick 4x4
1993 Toyota 4wd Pickup 226K and counting

I used to service a customers FIAT. It had a centrifugal oil filter built into the crank damper IIRC...it WAS 40 something years ago!

I do remember it took a hammer and screwdriver to dig out the accumulated sludge. I always thought that was a great way to filter oil.