Forum Discussion
- RolinExplorerPut a K&N on my 2 year old ford f150. Straight out of the box...assume that K&N oiled it correctly. Did not see any improvement is mpg or in performance. Liked the sound though. Pickup was a daily driver and used to pull a travel trailer.
In about 4000 miles it would hardly run. Had to have it towed to the Ford garage. MASS air flow sensor replaced for $$$$. Found later that I could have cleaned it but didn't know what the problem was. Took the K&N off and tossed it. After that I drove the f150 for 50k miles with no problems.
If you are mechanically inclined you can clean the oil off of the MASS. I didn't find any benefit to using the K&N and standard filters are not that expensive.
Your experience may be different... - Hank85713ExplorerBack in 1999 I spoke to the folks at Gibson exhaust company about the truck I had. They made 2 recommendations, 1 was for their cat back system (no brainer there) 2 to install a K&N at the same time. I did both, later I installed a better ignition system and the truck ran fine. I finally fabbed up one of the FIPK filter systems and that is what was on the truck until sold. I also run one on my 94 ranger, it has been on for over 200000 miles and the truck still runs fine and I dont clean it as often as they say so thats it. My son runs one on his F150 without any issues.
There are pros-cons to everything. It has been proven that the mafs do not fail due to the use of the oil on them, that was an issue many supposedly had, but as admitted to by some here it had to do with improper oiling! MAFS will fail, I had one go out on the ranger, no oil residue or anything in the tract they just sometimes fail. If you want to use one use it, but, remember they have to be fed and cared for appropriately. A lot of the new veh's have superior air filters (ford diesels in particular), but note they have limits to which they work. Aftermarkets use the K&N style some wet some not. SO pick what you want and go from there. Remember there are posters here pn these boards that say the OEMs make the very best and that the veh's cannot be improved by the aftermarket! So whatever you ask for, take responses with a grain of salt as that is really what they are worth - DuctapeExplorerLots of people like cool-ade. You can scientifically demonstrate that juice is better, but some will still prefer Tang. It's a free country.
I stay with OEM style FWIW. I have personally witnessed dusted engines damaged while using oiled filters. I rode the same trails with the same model no harm done. Coincidence? Maybe. - timmacExplorer
jfkmk wrote:
timmac wrote:
Lab test are that just lab test, in the real world it does not work like that..
Ever wonder how a outboard boat motor can last 30 years without a air filter, there is even some antique ones still running good after all these years without a air filter, someone needs to call Mercury marine and show them this lab test, maybe they will start putting paper filters on outboards.
:R
Lab tests are crucial to emulate real world scenarios. If they didn't reflect reality they wouldn't be required for a lot of products.
As far as boats go, did you really think about that statement before posting it? Have you seen too much dusty water?
Yes I did think about my post, as to dusty at lake yes it is, the air will still have dust, yes much less than driving down the road but still plenty of dust around, go down to your local marina and look at boats that have been sitting for a few months and see the dust built up on them.
So many false claims about the K&N, it collects enough dust to still keep your motor clean even beyond 200,000 miles. - jfkmkExplorer
timmac wrote:
Lab test are that just lab test, in the real world it does not work like that..
Ever wonder how a outboard boat motor can last 30 years without a air filter, there is even some antique ones still running good after all these years without a air filter, someone needs to call Mercury marine and show them this lab test, maybe they will start putting paper filters on outboards.
:R
Lab tests are crucial to emulate real world scenarios. If they didn't reflect reality they wouldn't be required for a lot of products.
As far as boats go, did you really think about that statement before posting it? Have you seen too much dusty water? - pnicholsExplorer II
timmac wrote:
Ever wonder how a outboard boat motor can last 30 years without a air filter,
Maybe it has something to do with the fact that there is a lot less dust over water surfaces than around road surfaces on which dust can settle and then be constantly stirred up by wheels rolling along on them. ;)
BTW, on our 4X4 pickup which I take offroad in very dusty conditions, I use a K&N filter with K&N's optional high-$$ fine dust filter cover for extra engine protection. - timmacExplorer
RambleOnNW wrote:
This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.
Lab test are that just lab test, in the real world it does not work like that..
Every time someone mentions K&N filters all the haters show up and toot their horn, I just wonder why there is not hundreds of thousands of broke motors being reported from using K&N filters ??
Ever wonder how a outboard boat motor can last 30 years without a air filter, there is even some antique ones still running good after all these years without a air filter, someone needs to call Mercury marine and show them this lab test, maybe they will start putting paper filters on outboards.
:R - RambleOnNWExplorer IIThis article shows ISO5011 testing of a number of air filters including K&N. The ISO5011 test feeds dirt at a rate of 9.8 grams/minute into a 350CFM airflow and measures the amount of airflow restriction vs time and the amount of dirt captured vs. passed.
This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.
This chart shows filtering efficiency:
Read more here. - timmacExplorer
Desert Captain wrote:
midnightsadie wrote:
desert captain, you been out in the sun to long. IF you follow k&n,s directions you,ll clog up you mass air flow in about 1k miles.
Your post is rude, ignorant and simply false {you must be so proud}. :S
Tens of millions K&N customers have had no problem following their instructions (these are the folks who actually read and follow them), for decades with excellent results. Not sure why you hate K&N so much but then I really don't care. I have been using K&N filters since 1998 with excellent performance, saving hundreds of dollars over the cheap (often Chinese), paper filters.
:R
Desert Captain don't let these folks bother you, I to have ran into a few knowitall's on here but the funny thing is they don't know Jack..
:C - klutchdustExplorer IIDiesel forum I follow had results posted from an independent study done on air filters. K&N wasn't in the top. I used one once that was given to me by my friends racing sponsor. I noticed no positive or
negative results.
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38,706 PostsLatest Activity: Apr 25, 2018