Air Filters?
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For the 1st 15K used Motorcraft. Oil samples showed slight amount of dirt. Well below danger levels. Switched to K&N. Oil samples came back much better and stayed that way. Sample every 7,000 miles. Have run over 100K and still strong. Just broke in. Punched a 3" hole in plastic grille right in front of fresh air intake to allow cooler air in. Seems logical that it would draw cooler air instead of air drawn around raditor assy. Talked to Ford, they said the reason they opted not to do that from factory was a chance of plugging with snow in certain conditions or applications. Don't plan on that being a problem. They seemed to like the idea. Only thing is that you do catch more small critters. Anyway seems to work for me.
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Originally Posted by Lashlaroo
Don't use a K&N with the 6.o liter diesel! Too many dust type particles get through and interfear with the variable vanes in the turbo. Factory type filter only..
Post Fiend
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From: Denton,TX
Originally Posted by PeteC
Does anybody have any proof (independent tests, worn out engines...) that the K&Ns let more dirt in?
From K&N:
Our testing has demonstrated that on average, K&N air filters have an overall efficiency rating of between 97 and 99%.
Last edited by johnsdiesel; Jul 21, 2004 at 03:27 PM.
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I'm not disputing your numbers. My problem is for someone to tell someone else in language that a person would have you believe that their firsthand knowledge is that K&N should not be used on a 6.0 because it will cause damage to the turbo, when in fact there is no application so how can that be proven or disproven.
It has been my personal experience that a K&N is more efficient in keeping dirt out of my 7.3 and my other engines based on oil sample reports as compared to OEM.
It has been my personal experience that a K&N is more efficient in keeping dirt out of my 7.3 and my other engines based on oil sample reports as compared to OEM.
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Post Fiend
Joined: Aug 2002
Posts: 5,324
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From: Denton,TX
Originally Posted by papatrq
I'm not disputing your numbers. My problem is for someone to tell someone else in language that a person would have you believe that their firsthand knowledge is that K&N should not be used on a 6.0 because it will cause damage to the turbo, when in fact there is no application so how can that be proven or disproven.
It has been my personal experience that a K&N is more efficient in keeping dirt out of my 7.3 and my other engines based on oil sample reports as compared to OEM.
It has been my personal experience that a K&N is more efficient in keeping dirt out of my 7.3 and my other engines based on oil sample reports as compared to OEM.
No offense, but I think it's crazy that you won't even believe the numbers from K&N themselves.
Post Fiend
Joined: Oct 2002
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For those that say the 6-oh K&N air filters don't exist....
Choctaw Bob has had one on his 6-oh for at least 6 months... and his blackstone reports show less silicone than averages and not much more than my stock filtered 6-oh does on a lot less miles
so I'm just not sure WHAT to believe !
Have had K&N's for years and never had a dusted engine personally,
no matter what I do though, I'm just getting my monies worth out of this stock filter first...
Choctaw Bob has had one on his 6-oh for at least 6 months... and his blackstone reports show less silicone than averages and not much more than my stock filtered 6-oh does on a lot less miles
so I'm just not sure WHAT to believe !
Have had K&N's for years and never had a dusted engine personally,
no matter what I do though, I'm just getting my monies worth out of this stock filter first...
Last edited by jdadamsjr; Jul 21, 2004 at 07:38 PM.
Postmaster
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From: Dallas
Originally Posted by Lashlaroo
Don't use a K&N with the 6.o liter diesel! Too many dust type particles get through and interfear with the variable vanes in the turbo. Factory type filter only..
I finally have the ammo to put this false rumor to rest once and for all!
Check my Gallery!
I have a K&N FIPK on my 6.0 PSD. It made 387 HP and 728 Ft Lb of Torque with a Predator and no other mods.
My Blackstone oil sample showed a silicone content of nearly half normal levels.
The K&N provides superior filtration and more power at the same time!
Postmaster
Joined: Dec 2003
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From: Dallas
Originally Posted by johnsdiesel
The factory filter also does a much better job filtering than any of the reusable filters. The Donaldson specs are 99.8% for a clean filter, 99.9% when it has some dirt on it. K&N's numbers, as posted on their own website, range from 97-99%. That doesn't seem like much, but it is. Take a clean Donaldson paper filter against a clean K&N filter. The K&N is letting in 15 times more dirt/dust. Again, not my numbers, but the numbers posted by K&N and Donaldson.
My oil test data proves that my K&N KIPK filters better than the stock filter.
Last edited by Choctaw Bob; Jul 21, 2004 at 08:18 PM.
Post Fiend
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From: Denton,TX
Originally Posted by Choctaw Bob
The test data simply doesn't support this. K&N Posted independent lab data showing their filters filter within .001% of the stock test filters.
My oil test data proves that my K&N KIPK filters better than the stock filter.
My oil test data proves that my K&N KIPK filters better than the stock filter.
Senior User
Joined: Jan 2004
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From: Medford, Oregon
Well, I'll put my flame retardent undies on first, here...
I just got through a VERY interesting read over at the diesel place for Damx's. They were able to cajole an independant testing lab (actually the firm that makes filter test stands) to run tests on Ummmmm 7 or 8 different stock & aftermarket filters (unfortunatly, Donaldson didn't make the list). It was a bit long & generated much discussion.
Seems the factory (AC/Delco) paper filter held up the best.
These were tests run just like the manufactur's run & they posted the results out there for all the world to see.
From those results, and what the guys over @ flatrate say, I'll stick with the OEM Donaldson. I can get about 6 for the price of the PRO-guard 7.
I just got through a VERY interesting read over at the diesel place for Damx's. They were able to cajole an independant testing lab (actually the firm that makes filter test stands) to run tests on Ummmmm 7 or 8 different stock & aftermarket filters (unfortunatly, Donaldson didn't make the list). It was a bit long & generated much discussion.
Seems the factory (AC/Delco) paper filter held up the best.
These were tests run just like the manufactur's run & they posted the results out there for all the world to see.
From those results, and what the guys over @ flatrate say, I'll stick with the OEM Donaldson. I can get about 6 for the price of the PRO-guard 7.
Post Fiend
Joined: Aug 2002
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From: Denton,TX
This thread is turning out like almost every other air intake thread. I guess that's why I usually recommend using the search function now when this topic comes up.
Bob, if you really want a lot more air and filtration you should consider retrofitting a Tymar intake for your truck.
Bob, if you really want a lot more air and filtration you should consider retrofitting a Tymar intake for your truck.
Last edited by johnsdiesel; Jul 21, 2004 at 08:46 PM.