minex
Colorado
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Joined: 08/10/2005
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According to the Magnuson-Moss Warranty Act, isn't it illegal telling customers that the factory warranty on their motor vehicles is void if an original equipment (OE) replacement air filter is not used?
I found this on the K&N Air Filter web site :
http://www.knfilters.com/warrantyletter.htm
Under this federal statute, a manufacturer, who issues a warranty on your motor vehicle, is prohibited from requiring you to use a particular brand of air filter, oil filter, or other service or maintenance item, unless such item is provided, free of charge, under your warranty or unless the Federal Trade Commission (FTC) waives this prohibition against the manufacturer.
2007 Dodge Ram 2500 SLT QC 4WD 5.9 6-Speed Manual CTD
2004 Keystone Hornet 27B TT
"Our country's founders cherished liberty, not democracy."
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donn0128
Pronounced Ore-gun
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The problem with any of the "oiled" filters is not that they may let in more air, dirt, or what ever. The problem is that people do not properly clean and re-oil them and the excess oil can reek havock on the MASS/MAF/grid heaters sensors causing drivability issues.
Donn
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YnotTurbo
Alpharetta Georgia
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Joined: 04/20/2006
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I have a AFE aftermarket filter. Will not go back to the OEM junk filter ever again. The AFE lets the engine breath.
Navy Chief
2007 Dodge Ram 3500 Laramie w/6.7 CTD, 6 speed auto, Factory Exhaust Brake.
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david_42
Oregon
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The OP wasn't told the warranty was void, just that Ford's diagnostic computer wouldn't give the correct results. Changing the airflow will always impact the emission control systems and that sounds like where he was having the problem.
No different from putting larger tires on a vehicle & introducing errors in the speedometer & odometer. Would you expect the dealer to fix that?
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CharlyG
West HIlls, Ca.
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That breath you hear is mostly noise. It is my understanding, that there is already plenty of air for combustion, and shoving more in doesn't help a whole lot, other than making it louder, which sound cool and makes you lay into the pedal more, thereby making any possible small gain nil anyways!
1998 Chevy C2500HD Silverado ECLB 75,000 miles 5.7L Vortec 4L80E 3.73 Posi 8600# GVWR
2004 Fleetwood Caravan 25S 6000# GVWR
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Calpine
Southern CA
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Joined: 04/19/2008
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CharlyG wrote: It is my understanding, that there is already plenty of air for combustion, and shoving more in doesn't help a whole lot, other than making it louder How then would you explain turbocharging?
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scabello
California
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Joined: 12/29/2004
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K&N lets in more dust and dust. It is quite obvious if you use the filter (and use it properly) because all you have to do is run your finger where the clean air should be and you will pick up some dust. Is it really a problem though?
No. Will K&N give performance benefit? Potentially. It will allow more air so potentially you will get more air for combustion. It should give some performance gain.. but is it measureable? Nope.
You will see a lot of guys run K&N and remove the OEM filter housing. The oem filter housing brings in cooler air with its plumbing which has a performance gain.
Bottom line is this: auto manufacturers do not want to spend the money to install a filter that needs to be oiled and they do not want to service them because they are messy and take more labor to change. If it would gain 0.2 MPG, they would do it. But it doesnt, maybe more like 0.0002 MPG. This is why I wont bother either.
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Wintercamper
Sweden
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Joined: 06/17/2006
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Air filter test clicky
I do not use, and never will use a "performance" air filter for my DD.
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CharlyG
West HIlls, Ca.
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Calpine wrote:CharlyG wrote: It is my understanding, that there is already plenty of air for combustion, and shoving more in doesn't help a whole lot, other than making it louder How then would you explain turbocharging?
I'm no expert, but isn't that also unburnt fuel? which would mean the explosion would be bigger?
also, wouldn't there be a point where there was TOO much air? If it is air to fuel ratio, it seems there must be a point where that could happen?
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gandude
east bay
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Joined: 02/05/2005
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One of the things I liked in the 04'6.0 250 I had WAS the air filter. It was large and had a LOT of surface area. It would take a long time to accumulate debris. I am not an engineer but you would have to explain why it should be replaced w/K&N to me. I wish my shop vac had a filter like that, woulnt have to clean it as often. The only problem was it was hard to access the filter.
JMHO
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06 Dodge 3500 SLT, QC, LB, 4x4, 5.9, auto 370's
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