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Mileage Bump ! !

Discussion in '3rd Gen 4Runners (1996-2002)' started by Hank69, Jun 6, 2025.

  1. Jun 6, 2025 at 10:11 AM
    #1
    Hank69

    Hank69 [OP] New Member

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    Was talking (whining) to a buddy about my horrible mileage and he asked me how long it had been since I changed my fuel filter.
    The answer was of course never.
    Crazy easy job.
    If you've never done it there's YouTube videos specific to 3rd gen.
    I honestly gained 2+ MPG average & and even better Improvement highway.
    I'm not saying that's what you'll get, that's just my story.
    Anyway.. just thought I'd throw that out there.
    Y'all have a groovy day!
     
    Spare Parts, SR5 Limited and chiz44 like this.
  2. Jun 6, 2025 at 10:41 AM
    #2
    SR5 Limited

    SR5 Limited New Member

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    Do your PCV valve?
     
    Ripper238 and Hank69[OP] like this.
  3. Jun 6, 2025 at 11:10 AM
    #3
    morfdq

    morfdq New Member

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    TRD Wheels, exhaust, Eibach, Cali Raised Skid Plate, Diode Dynamics fog, Sherpa Crestone rack.
    amen about the PCV valve, that is often overlooked
     
    Hank69[OP] likes this.
  4. Jun 6, 2025 at 1:08 PM
    #4
    SR5 Limited

    SR5 Limited New Member

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    Its from the dealership putting too much oil in it.
     
    Hank69[OP] likes this.
  5. Jun 6, 2025 at 1:25 PM
    #5
    Ripper238

    Ripper238 New Member

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    I never replaced fuel filter unless there was a drop in MPG or I'm noticing a fuel issue. Clogged one up in my old Dodge once, pain in the ass to replace dropping the tank.

    Looks like its recommended to change every 30-50k depending on year. Guess ill get that and this "PCV" valve done soon?
     
    Last edited: Jun 6, 2025
    Hank69[OP] likes this.
  6. Jun 6, 2025 at 2:34 PM
    #6
    Hank69

    Hank69 [OP] New Member

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    Yeah, I got to that a couple weeks later.
     
  7. Jun 6, 2025 at 4:10 PM
    #7
    SR5 Limited

    SR5 Limited New Member

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    Curious, do you run injector cleaner. I had my injectors replaced and do not. These newer fuels have that stuff in it already.
     
  8. Jun 6, 2025 at 5:34 PM
    #8
    Ripper238

    Ripper238 New Member

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    Okay,

    1- What is a PCV valve and where is it.
    2- Where is the fuel filter?
     
  9. Jun 6, 2025 at 10:29 PM
    #9
    Hungryhawk

    Hungryhawk New Member

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    I have noticed different brands of gas use different additives. Chevron with Techron is amazing. And I use a Techron bottle in my fuel tank about after an oil change. Carbon build up in throttle body does happen. So thats why I switch brands and use a supplement Techron.
     
  10. Jun 7, 2025 at 10:32 AM
    #10
    Hank69

    Hank69 [OP] New Member

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    Injector cleaner is one of those things I am interested in but there's so many Brands and so many opinions one way or the other on all of them.
     
  11. Jun 7, 2025 at 2:41 PM
    #11
    Hank69

    Hank69 [OP] New Member

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    PCV valve basically recycles gases from the crankcase back into the intake. There's more to it than that. Google can elaborate. It's located on the passenger side valve cover.
    https://youtu.be/ST8XV1RUHdM?si=vexbvlwr79WQECc8
    Fuel filter is on the frame driver side up towards the front door.
     
    Ripper238[QUOTED] likes this.

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