K&N Filters: are they worth it?

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Old Sep 10, 2007 | 04:23 PM
  #16  
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chester, I'm not digging peanuts, but I am cuttin' hay. My truck is in the fields and dirt roads prolly as much as yours. And I know you know how dry and dusty it's been this summer.

If my filter looked like yours, I'd go ahead and spend $20 for a new one.

I check mine every oil change and it's never THAT dirty. But then, maybe my K&N is letting all that crap through. Engine must be burning it though. No dust or dirt from the filter back. And with 70+K miles, no problems.

 
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Old Sep 10, 2007 | 05:35 PM
  #17  
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Originally Posted by jward
chester, I'm not digging peanuts, but I am cuttin' hay. My truck is in the fields and dirt roads prolly as much as yours. And I know you know how dry and dusty it's been this summer.

If my filter looked like yours, I'd go ahead and spend $20 for a new one.

I check mine every oil change and it's never THAT dirty. But then, maybe my K&N is letting all that crap through. Engine must be burning it though. No dust or dirt from the filter back. And with 70+K miles, no problems.

It has been EXTREMELY dusty here, and if you aren't stoping it up, then it's letting it through. Plain as that. But, I rode around for a long time with my intake hose leaking air after the air filter. (stupid dealership) It let all kinds of dirt into the intake, and it didn't seem to hurt my motor. Except for the IAC valve. If you ever get the notion, try a motorcraft filter for a month or so. You'll be surprised at how stopped up it will get. QUICK.
 
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Old Sep 11, 2007 | 12:37 PM
  #18  
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I agree with Chester on this one. If he ran a K&N with little dust build up, then switches over to motorcraft and the things gets plugged up, then I can only reason that K&N filters let a ton of crap in! Makes sense since they flow more air, which would mean less restriction which would result in less filtration.

Just so you know, air filters were first designed (and still there main purpose today) is too keep intake noises to a minimal decimal level. If you are always on paved road, go for K&N, with out a doubt. but if you actually use your truck for work, and play (in the mud/dirt) then looks to me like Motorcraft is the way to go. Just my opinion.
 
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Old Sep 11, 2007 | 12:45 PM
  #19  
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Originally Posted by MercedesTech
I agree with Chester on this one. If he ran a K&N with little dust build up, then switches over to motorcraft and the things gets plugged up, then I can only reason that K&N filters let a ton of crap in! Makes sense since they flow more air, which would mean less restriction which would result in less filtration.

Just so you know, air filters were first designed (and still there main purpose today) is too keep intake noises to a minimal decimal level. If you are always on paved road, go for K&N, with out a doubt. but if you actually use your truck for work, and play (in the mud/dirt) then looks to me like Motorcraft is the way to go. Just my opinion.

So - just what kinda octane / BTU content we talkin' about here with peanut dust?
 
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Old Sep 11, 2007 | 01:03 PM
  #20  
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Originally Posted by MGDfan
So - just what kinda octane / BTU content we talkin' about here with peanut dust?
I don't know, but i bet Troyer can tune it for at least 20% more power.
 
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Old Sep 11, 2007 | 01:47 PM
  #21  
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"If you ever get the notion, try a motorcraft filter for a month or so."

Dealership is out of my way. But, if/when I need to carry the truck in, I'll pick one up. Always good to have a spare(anything) around the shop, when you live in the sticks.

Any doves coming in on those peanuts, chester?
 
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Old Sep 11, 2007 | 03:48 PM
  #22  
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Amsoil now sells nanofiber cleanable air filters, and they actually cost LESS than a K&N. They do not use oil.
 
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Old Sep 11, 2007 | 04:06 PM
  #23  
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With almost 200K of use on my K&N(s), I think I'll just stick with em until the truck dies.......
 
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Old Sep 11, 2007 | 07:13 PM
  #24  
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Originally Posted by MGDfan
Worth it - but only from a replacement cost standpoint. NO more paper filters to buy.

Otherwise - NO perf benefit. NONE. Anyone who claims different is blowing smoke, or is a politician.

http://www.trueflow.com/docs/dyno/filter.pdf
Use search - this has been kicked to death: https://www.f150online.com/forums/sh...light=trueflow


I agree! I gave mine away after I had to remove it to get a smog cert. no power gains and no gas savings, it did keep the intake free of dust.
 
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Old Sep 11, 2007 | 10:19 PM
  #25  
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Originally Posted by jward
"If you ever get the notion, try a motorcraft filter for a month or so."

Dealership is out of my way. But, if/when I need to carry the truck in, I'll pick one up. Always good to have a spare(anything) around the shop, when you live in the sticks.

Any doves coming in on those peanuts, chester?
Not on the peanuts yet, but they're tearing up the corn fields!

Originally Posted by glc
Amsoil now sells nanofiber cleanable air filters, and they actually cost LESS than a K&N. They do not use oil.
Yeah, just what I need. A $500 air filter.
 
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Old Sep 11, 2007 | 11:12 PM
  #26  
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Ive changed my mind on K&N filters and am not to much of a fan of them anymore. Like Chester, I live in the country on a farm...10 miles of dirt roads to the nearest pavement, dust thrown everywhere from equipment etc, and its just dirty as fluck. I initially went with a K&N because I replaced stock paper filters so much...I figured with the K&N it would be cheaper to just clean them out and call it good, not to mention I dont make it anywhere to get filters to often.

Anywho, after sticking on the K&N and realizing the dirt it was letting into the engine I realized it was a bad choice. I was going though paper filters so much I just left the damn K&N on because I was going to trade the truck off soon (oops, sorry dealer, I dont know anything about corn growing in the intake tube )
With my new truck Im just stickin to the stock paper for now. Tap it out real good every week and replace often, keep plenty in stock.
 
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Old Sep 11, 2007 | 11:18 PM
  #27  
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Chester, an Amsoil air filter for your truck is $38.10. It's guaranteed for 4 years or 100k miles, cleaning recommended every 25k.

Not trying to sell you one, just correcting a misconception you seem to have.

Yeah, just what I need. A $500 air filter.
 
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Old Sep 11, 2007 | 11:48 PM
  #28  
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From: Vienna, Georgia
Originally Posted by Bartak1
Ive changed my mind on K&N filters and am not to much of a fan of them anymore. Like Chester, I live in the country on a farm...10 miles of dirt roads to the nearest pavement, dust thrown everywhere from equipment etc, and its just dirty as fluck. I initially went with a K&N because I replaced stock paper filters so much...I figured with the K&N it would be cheaper to just clean them out and call it good, not to mention I dont make it anywhere to get filters to often.

Anywho, after sticking on the K&N and realizing the dirt it was letting into the engine I realized it was a bad choice. I was going though paper filters so much I just left the damn K&N on because I was going to trade the truck off soon (oops, sorry dealer, I dont know anything about corn growing in the intake tube )
With my new truck Im just stickin to the stock paper for now. Tap it out real good every week and replace often, keep plenty in stock.
Hey, you need to try a motorcraft. It's a paper/cotton filter, and it's oiled.

Originally Posted by glc
Chester, an Amsoil air filter for your truck is $38.10. It's guaranteed for 4 years or 100k miles, cleaning recommended every 25k.

Not trying to sell you one, just correcting a misconception you seem to have.
Thanks. If it's guaranteed to buy me a new IAC valve, I might try one.
 
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Old Sep 12, 2007 | 12:09 AM
  #29  
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Originally Posted by chester8420
Hey, you need to try a motorcraft. It's a paper/cotton filter, and it's oiled.

Ill hafta do that after I get rid of the Napa things I have sittin around.
 
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Old Sep 12, 2007 | 12:10 AM
  #30  
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Originally Posted by Bartak1
Ill hafta do that after I get rid of the Napa things I have sittin around.
I wouldn't put napa air filters on my go-kart.
 
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