Better gas mileage!!!

I had to post the results of me putting a new air filter in my 5.4ltr. Ford f-150. I bought a K&N air filter and had great results! I was getting 14.5-15MPG but my last two tanks were 17 and 17.5MPG. These filters are expensive (55-60 bucks) but are a lifetime filter. It also increases horsepower by 10-15%(this would be a welcomed result to all you Chevy guys ) Anyways here is a link to their website…RR
http://www.knfilters.com

Awsome air filters .I have used these in all my vihicles from cars,trucks,bikes,quads. Also with great results with todays gas prices we need to get any advantage we can ge to up the performance.. THANKS FOR SHARING

I have been using K&N products for a couple years now, and am also quite impressed with the results. The regenerating kit is only about $25, and you only have to do it about every 40,000 miles if you don’t drive gravel a lot.

Definitely worth the dough….

Do they sell these in stores or only on-line?

Every autoparts store I’ve been to has them.

Fram makes the same exact filter for less money K&N lost the patent on their filter.

Is the generic brand called Air Hog ????

Yes it is.

So K&N and Airhog is pretty much same deal for air filters then?

Exactly look at both side by side the only difference is the color of the element.When i bought mine(AIR HOG)they threw in the maintenence kit.

I got a couple K&N’s back in 99′ for my trucks. Don’t expect any power gains to speak of. I never really checked the mileage as I am always towing.
If you get one for a diesel you’ll need to recharge the filter much much sooner than 40k miles. They suck alot more air and gunk in them.

Thanks for the Info guys.

Just going off the information given, besides more power, you will save about $9.50 per tank at these gas prices. I have the same/close to same truck as originally posted. Won’t take long to make up the cost of the filter

Are they any noisier than stock set-ups?

I haven’t noticed any more noise than usual. I did notice the increased horse power right away though. Bottom line is more air gets through than a paper filter thus better performance. I never thought of it but “Lip Ripper” is right. In a day of high gas prices it makes a lot of sense (especially since we will all be pulling rigs around the state very soon!)…RR

my uncle tried one drove from mn to texas got 15.5 mpg with a regular air filter put the k@n filter in when he was down there and drove back and got 15.5mpg

you need to be careful when using on vehicles with mass air flow sensors I have seen many get ruined when too much oil is put on the kn filters oil blows off the filter coats the sensor and it doesnt read correctly. any perfomance gains I’ve seen on different vehicles isnt worth the money.

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you need to be careful when using on vehicles with mass air flow sensors I have seen many get ruined when too much oil is put on the kn filters oil blows off the filter coats the sensor and it doesnt read correctly. any perfomance gains I’ve seen on different vehicles isnt worth the money.

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They can get oily normally they don’t go bad, and you can clean they, if you use something safe for cleaning maf sensors.

That being said I’ve had one in my truck for years, and I still get 14mpg everyday.

What year is your truck? Mine’s an 01.

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you need to be careful when using on vehicles with mass air flow sensors I have seen many get ruined when too much oil is put on the kn filters oil blows off the filter coats the sensor and it doesnt read correctly. any perfomance gains I’ve seen on different vehicles isnt worth the money.

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They can get oily normally they don’t go bad, and you can clean they, if you use something safe for cleaning maf sensors.

That being said I’ve had one in my truck for years, and I still get 14mpg everyday.

What year is your truck? Mine’s an 01.

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Yes youare right you can clean them but it doesnt always fix them I would say 80% of the time I have been able to clean the sensors but sometimes they get too contaminated for too long an they get ruined.
i have quite a few customers that run those filters and some notice more power pulling trailers but not any better milage. I have a 96 dakota 5.2 and i tryed on out of a friend truck and didn’t notice a difference personally.
Not trying to say tey are bad filters they are good filters
just a personal preferance if you ask me

Now throw in some synthetic oil in your next oil change and you’ll do even better.

AND…….Drop in a FloMaster exhaust system and my 5.3 Chevy 1500 Z-71 4X4…has surpassed 20mpg several times (summer temps).

I used to always run the K&N filters till I seen the results and pictures of a real life test on them ( wish I could find that link back ). The K&N`s let more dirt into the engine then any oher filter out there, even worse then the ultra cheap paper filters.

They took a four banger Honda, and drove each filter 5,000 miles. Basically same route back and forth to work behind each filter they installed a secondery type filter ( they had a name for this ) to catch particules that the main air filter didn`t catch. Because of the secondary filter they lost mileage but they expected that. That was not there priority for the test, but to find which filters lived up to there claims. Plain old Fram filters did a much better job filtering dirt out then the K&N`s. So I geuss to me I would rather save my engine then maybe save 1 to 1.5 or maybe even 0 miles to a gallon versus a new engine especialy if one runs in real dusty conditions.

But that is just me.