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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

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Old 09-25-2011   #51
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Quote:
Originally Posted by Purplehazeir View Post
If the K&N filter is charged right, you won't get it's oil into your engine. I've seen them after people clean them, then over oil them and then the oil can screw up the MAF and cause some poor running.
Correct if proper care is taken of them they are good filters.
Harley Davidson puts K&Ns in their Screamin' Eagle motorcycles from the factory
and they are the top of the line big $$$$ Harley's.

I off road a LOT in my truck and have sent in for an oil analysis. This is using a K&N drop in filter is extremely dusty/dirty conditions. When I spend a day off road under-hood will have piles of dust/dirt about everywhere and the filter is filthy. The report shows the filter did it's job.
Here is the report. This is first hand experience, proof, not something I read somewhere.

Last edited by vindex1963; 09-25-2011 at 09:16 PM.
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Old 09-25-2011   #52
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Do a google on "Turbo Dusting". Lot's of articles on turbo damage from the dirt/oil
a K&N passes.

Here is an article stating that a K&N will pass 100 micron dirt particles, a paper filter is 20 microns:

http://www.benzworld.org/forums/w211...r-filters.html


This photos of paper vs K&N filter media confirms that:


OEM Paper Filter Media:





K&N Filter Media:




And more proof. I did this experiment a few years ago. I covered a plexiglass tube with K&N filter media, and OEM paper media. I used carbon resistors as a
smoke source, and as you can see the smoke passed right through the K&N
media, but the paper media blocked the smoke:









Besides, as Kris has stated, there isn't any performance advantage of using a K&N filter. You could use chicken wire for a filter, and there wouldn't be any performance improvement over OEM paper filters.
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Last edited by Takeda; 09-25-2011 at 09:29 PM.
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Old 12-07-2011   #53
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Hey Robert did you change the spark plugs on this truck? I am not sure if you are up on the plug problems on the 04 to 07 F150 with the 5.4 L engine. Look in the forum for more info.
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Old 12-07-2011   #54
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I'm getting about 14 mpg, average, haven't driven mine a lot since I bought it, but... 14 mpg is a lot better than what I get in my work truck, which is a tractor trailer, it gets about 6 mpg with a tail wind, lol!
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Old 04-19-2012   #55
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Quick bump since its been a while since I posted on here, I got the Edge evo tuner and my mileage has gone up quite a bit and my truck doesn't feel like a dump truck like one member mentioned. The average mileage displayed by the Edge is usually around 16-18 highway and when I drive in town it drops to low 15s.

Overall I'm very happy with this purchase and I'm getting 720km+ to a tank which is much better than under 500km I was getting stock. The biggest difference I think is that I drive normally and I'm not in a rush to mash the gas, I pay a lot of attention to the APP senor/engine load.

Sean
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Old 04-20-2012   #56
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14 mpg

Last edited by Brian333; 04-20-2012 at 11:13 AM. Reason: Already posted
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Old 05-17-2012   #57
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I average 18.5 on a recent weekend trip. Mixed country roads and interstate.

2005 5.4 XL SC
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Old 05-17-2012   #58
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Quote:
Originally Posted by fatblockabody View Post
I average 18.5 on a recent weekend trip. Mixed country roads and interstate.

2005 5.4 XL SC
Not bad.
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Old 05-17-2012   #59
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Not bad.
I was happy. I have been getting very similar mileage to what I was getting with my 4.0 Ranger on 31's.
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