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Old 04-22-2016, 09:23 AM   #1
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Aftermarket Air Filter Test

Thought I would share this article summarizing great information and results of an independent air filter test. It made me change which filters I run in my 7.3L.

Link to article:
What You Should Know About Aftermarket Air Filters | Diesel IQ
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Old 04-22-2016, 10:07 AM   #2
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Great article! What filters are you running now?
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Old 04-22-2016, 10:26 AM   #3
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I am running a Donaldson.
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Old 04-22-2016, 11:28 AM   #4
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I had K&Ns and changed to the AC Delco.
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Old 04-22-2016, 11:35 AM   #5
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Thanks for the link it was very informative. It looks like K and N filters are really junk and that agrees with my experience. I installed a very expensive K and N in my BMW just prior to a trip to Baja. After a couple weeks there I began to notice I was burning oil when I never did before. After removing the filter I noticed the inside of the air box was pretty dirty, so the filter was passing a lot of dust. By the time I got home I had to pull the top end and install new valve guides. The dirt had eaten the guides and seals. Oddly, the pistons and cylinders were just fine with no measurable wear. The filter went in the trash and I went back to the stock one. 100K miles later, oil consumption is still minimal.
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Old 04-22-2016, 11:40 AM   #6
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Old 04-22-2016, 03:55 PM   #7
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Quote:
Originally Posted by arctictraveller View Post
Thanks for the link it was very informative. It looks like K and N filters are really junk and that agrees with my experience. I installed a very expensive K and N in my BMW just prior to a trip to Baja. After a couple weeks there I began to notice I was burning oil when I never did before. After removing the filter I noticed the inside of the air box was pretty dirty, so the filter was passing a lot of dust. By the time I got home I had to pull the top end and install new valve guides. The dirt had eaten the guides and seals. Oddly, the pistons and cylinders were just fine with no measurable wear. The filter went in the trash and I went back to the stock one. 100K miles later, oil consumption is still minimal.
That happened to several bikes in my local BMW club. I've always used factory paper filters and will continue to do so. My R90S Has 160,000 miles on the original cylinders/pistons/valves'guides. My R100RS has 180,000 km and has never been apart.

MC experience is why I only use OEM paper air filters.

Mike
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Old 04-22-2016, 04:10 PM   #8
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I had a K&N on my R100GS for a while, but got rid of it years ago.. Don't remember how many miles I put on the K&N, but definitely many tens of thousands.. now 140,000 on the bike, top end still good.

I just don't like cleaning filters, throwing out old one and replacing with new is much easier.. and apparently better too!
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Old 04-22-2016, 04:14 PM   #9
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Air filter cover

Pretty interesting article. My van came with the 'Spectre' aftermarket filter, and the whole air box assembly was removed and modified for it by the PO. I just haven't gone through the effort to find a used air box to put it back to stock. Now maybe I will...

As far as dust and water getting through, K&N does offer a pre-filter 'sock' for those extreme environmental conditions.

http://www.amazon.com/RC-3680DK-DryC.../dp/B0022ZQZMS
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Old 04-23-2016, 04:10 AM   #10
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Quote:
Originally Posted by scummy View Post
I am running a Donaldson.
FWIW nearly every big truck, 18 wheeler, semi, etc etc run Donaldson air filters. Considering those tend to run 100K or more miles per year that's pretty impressive.

Aside from that this is a VERY interesting article---one to keep bookmarked for future reference.

Thanks for sharing B350!
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