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Old Mar 1, 2011 | 04:13 PM
  #16  
BigPigDaddy's Avatar
BigPigDaddy
Cargo Master
Joined: Sep 2007
Posts: 2,624
Likes: 7
From: OR and UT
Originally Posted by i eat hybrids
hold off on the k&n if you want your motor to last... k&n's dont filter that well compared to the oem filter.. plus the performance/mpg is not there period
My experience is the complete opposite, particularly with MPG gains.

Originally Posted by maverick22
From what I've read, the main reason they're not recommended is the oil on them tends to gum up the MAF sensor on these engines.
Over-oiling may cause problems. Follow K&N instructions and you won't have any issues.

You will find quite a few people around here who recommend against using K&N filters. Some of them have even used them before.


Back on topic:
The truck you bought had 268 miles on it in July of 2007 and 175,071 miles in April 2010. That equals about 5,297 miles per month. Sound like a salesman/rep rig or tow rig for delivery of something like trailers maybe?
 
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Old Mar 1, 2011 | 05:24 PM
  #17  
krusterzf-350's Avatar
krusterzf-350
Junior User
Joined: Aug 2008
Posts: 81
Likes: 0
From: Boise id
I drive on dusty, dirty construction job-sites, and will never use a K&N. They let in way too much dirt for me to feel comfortable. I think everyone has been sold on K&N due to great marketing. Ive seen some foam filters on this website made by true flow. give em a look. I think they look kinda cool.

GoAirFilters.com Search Results
 

Last edited by krusterzf-350; Mar 1, 2011 at 05:26 PM. Reason: messed up
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Old Mar 2, 2011 | 11:53 AM
  #18  
atzottola's Avatar
atzottola
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Joined: Feb 2011
Posts: 47
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I don't put that many miles on my truck (maybe 8k year) and the environment isn't dirty like a jobsite. It is mostly run in the winter to plow my driveway at home and at my shop. I will tow my Bobcat, camper and open race car trailer a few times a year, but it doesn't go off road. The truck was owned by a pump service in Texas and did not have a 5th wheel. If I could get the guy to answer his phone, I would know what he did with it and how well he maintained it. As for the filter, I'll see what is in it and probably just toss in an OEM for now. Everyone seems to have a different opinion and I really wouldn't use a K&N unless there was a significant gain in MPG.
 
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Old Mar 7, 2011 | 09:45 AM
  #19  
atzottola's Avatar
atzottola
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Joined: Feb 2011
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Found an exhaust manifold stud that was threaded into the block just enough to keep it from falling out. It broke just below the head surface (I am assuming, didn't get the manif off yet). Question is, If these studs are still breaking after the engine has been on the market for 10 years (mine is a 2008), What is the permanent fix? I have contacted ARP to see if they make a replacement stud kit. They haven't gotten back yet. What are the rest of you doing when pulling the exhaust off? Seems stupid to put the original studs or Ford replacements back in. Should I expect the broken stud to come out easier or more difficult than if it was in a cast iron head? Love the truck though. Just need to get the mileage up a little. Computer shows 11.6 and since it is in the Pgh area now, it is already going down.
 
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