K&N air filters: any good?
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  1. #1
    Fellow Frogger!
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    Default K&N air filters: any good?

    Just changed the air filter on my cherished Koleos from a K&N cotton filter to a normal paper filter and noticed that I can see the house opposite the street through the K&N filter but not the ordinary one. I am aware that K&N claim that their filters last 'fo-eva' and need not be changed and do just as good job as paper filters, while letting more air through to the betterment of engine power and and fuel consumption. Any comments?

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  2. #2
    COL
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    Hi Breitie

    K & N Filters need to be maintained as in the link below, do the maintenance and they will last a long time.

    https://www.knfilters.com/clningacc.htm
    Regards Col

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  3. #3
    1000+ Posts driven's Avatar
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    Probably notice the same amount of power increase when you turn your headlights and wipers off

  4. #4
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    I got rid of the K&N of a Mercedes Kompessor I once had because it kept fouling the MAF sensor. Perhaps it was oiled too much???

  5. #5
    COL
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    Quote Originally Posted by dunky View Post
    I got rid of the K&N of a Mercedes Kompessor I once had because it kept fouling the MAF sensor. Perhaps it was oiled too much???
    Yes it would of been oiled to much.

    The first one I got was for a NX650 Honda and I oiled the filter and rang out the excess like the instructions said, on the first ride the oil in the filter run out and blocked a few crankcase breather holes in the air filter housing and make the bike run erratically.

    So pulled filter out and rang out as much oil as I could, I was surprised at how much more oil I got out of the filter. Also had o clean up the gooey mess in the bottom of the filter housing.

    You don't need much oil on the filter, just make sure that it is evenly coated. A 1 litre bottle of oil will last a life time. I still have half a bottle here on the shelf.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    1995 Renault Laguna V6
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

  6. #6
    COL
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    The advantage of washable filters is that after the initial out lay of the filter and your bottle of oil, there is no expense, just a little time to wash out the filter, dry and re-oil.

    In the long term it works out cheaper.

    In the case of the Honda, a paper filter cost $53 and a Uni Filter cost $35 + oil, it was a no brainer.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    1995 Renault Laguna V6
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

  7. #7
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    Quote Originally Posted by COL View Post
    Hi Breitie

    K & N Filters need to be maintained as in the link below, do the maintenance and they will last a long time.

    https://www.knfilters.com/clningacc.htm
    Sweet! Thanks for the lead COL.

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