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K&N low miles per tank

Discussion in '4 Cylinder' started by Kirk1589, Sep 26, 2012.

  1. Sep 26, 2012 at 3:55 PM
    #1
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    This past Sunday I installed a K&N drop in filter. With the same driving habits as normal, I have seen a decrease on the miles on a tank. Usually at half tank with the OEM I'm around 275 miles. Currently with the K&N I'm at 190 miles. What could be causing this? Oil getting on MAF?
     
  2. Sep 26, 2012 at 3:57 PM
    #2
    tostidos

    tostidos Well-Known Member

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    Going by half tanks is very inaccurate. the only tru way to find out how much you are losing is by measuring miles driven after a fill up and divide it by how much gas you put it. That being said K&N is made for more power not more MPGs direct opposite.
     
  3. Sep 26, 2012 at 3:57 PM
    #3
    Aw9d

    Aw9d That one guy

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    If you over oiled it yes it could cause issues. I've never seen a filter swap drop MPG's that bad.

    Did you install it right out of the bag from K&N? They over oil the shit out of them since they get stored for a long time. I tell people to pull it from the bag and let it sit for a few days on a paper towel or something. You'd be surprised how much oil drains out.
     
  4. Sep 26, 2012 at 3:58 PM
    #4
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    I will have to wait too see what I get on a tank. It was a gift so i don't care I'll throw the OEM in
     
  5. Sep 26, 2012 at 4:33 PM
    #5
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    Yes right out of the bag. May purchase the AFE dry one. I took it out like you said. Have the OEM in for a few days
     
  6. Sep 27, 2012 at 3:24 PM
    #6
    ivel

    ivel Well-Known Member

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    You sure you figured right ?

    275 on a half tank with a 4x4 ?

    I'm lucky to get 200 on a half tank.

    Did you change out the motor ?

    ???
     
  7. Sep 27, 2012 at 4:48 PM
    #7
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    Yea 1st gen

    Really i'm always past 200 on half

    bone stock EVERYTHING on the truck...Besides the KN

    filled up today 393 got 14.6 gallons in so nothing changed.

    Look at my FUELLY
     
  8. Sep 28, 2012 at 6:48 AM
    #8
    scaplus

    scaplus Well-Known Member

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    I can get almost 260 out of a half a tank, so it's possible. I have a AFE put in mine and I can barely notice a MPG increase but I do notice it more in the city than I do on the highway.
     
  9. Sep 28, 2012 at 7:28 AM
    #9
    ivel

    ivel Well-Known Member

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    I looked at your fuelley but I thought 1st gens had a 2.3 in them not 2.7 ???

    I need to learn you driving characteristics or is there that much difference in the mpg's on a 1st gen and 2nd gen ?
     
  10. Sep 28, 2012 at 7:42 AM
    #10
    whippersnapper02

    whippersnapper02 Well-Known Member

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    They had a 2.4 and a 2.7.
     
  11. Sep 28, 2012 at 9:15 AM
    #11
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    Shift at 2500 and don't rev past 2500 on the freeway. Don't lug 5th but drive easy.
     
  12. Sep 28, 2012 at 12:38 PM
    #12
    ivel

    ivel Well-Known Member

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    I've got an auto and try to keep it under 2000 rpm's as much as possible. :confused:
     
  13. Sep 28, 2012 at 12:49 PM
    #13
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    Don't use the AC around town put the windows down, on the highway use the AC. ... Open windows cause drag. Make sure tire pressure is set to the specs. Avoid letting truck idle to get warm get in it and drive. Don't idle for extended periods.
     
  14. Sep 29, 2012 at 12:20 PM
    #14
    ivel

    ivel Well-Known Member

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    A/C might be the culprit. It's hot in South Carolina in the summer.
     
  15. Sep 29, 2012 at 4:03 PM
    #15
    Kirk1589

    Kirk1589 [OP] Well-Known Member

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    AC and having an automatic is the problem
     
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