New Raptor need fuel help

Discussion in 'Ford F-150 Raptor General Discussions [GEN 2]' started by bo1966, Jun 13, 2018.

  1. eclou

    eclou Full Access Member

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    No its not lag, its more of a shudder or sensation of wheel hop. I doubt its wheel hop though because its not WOT acceleration. After reading the 542 thread it seems that its not uncommon amongst owners and folks are seeing 0.4 or so seconds drop off their 0-60 times with just the plugs. That's a major measurable benefit for such a simple change
     
  2. BangBang

    BangBang Full Access Member

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    Change them out then report back.

    ---------- Post added at 12:28 PM ---------- Previous post was at 12:09 PM ----------

    My first fuel stop since getting the truck two weeks ago.........$99.93.
    Might switch to 87.
     
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  3. eclou

    eclou Full Access Member

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    I just did mine. All stuttering gone, pulls much smoother now
     
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  4. kboom

    kboom Member

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    Where did you order them from? Do you have a part number? Mine is an 18.


    Sent from my iPhone using Tapatalk
     
  5. eclou

    eclou Full Access Member

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    Amazon.com Motorcraft SP-542
     
  6. smurfslayer

    smurfslayer Be vewwy, vewwy quiet. We’re hunting sasquatch77

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    Rookie.

    More stops, lower cost to fill, doesn’t feel as painful. ;-)
     
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  7. RaptorMaryland

    RaptorMaryland Full Access Member

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    I ran 87 for 2 k miles and 93 for 2k miles

    Both were 90/10 highway/city

    Tires were 40 psi for the 93 and then lowered to 37 psi for the 87 octaine.

    Fuel milage was the same. Not going to pay for 93 unless I am pulling a load.
     
  8. JustBillin

    JustBillin Full Access Member

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    I run the middle grade around here (89-91) in TN mostly, but every third tank or so I run (93). It’s hard to say whether it runs better with the 93 since my foot gets a little heavier after those fill ups. I took my truck out west a couple months ago and was shocked at what they call premium octane.

    I’m not interested in the super plugs, since I would imagine the fine Engineers at Ford have dialed in the proper heat range for the Raptor plugs for a stock engine. That thread kind of reminds me of the many weep hole posts in the past.:biggrin:
     
    Last edited: Jun 13, 2018
  9. Tech

    Tech Member

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    I read either here or the manual, that engine will run 87, but suggested you doing so in the winter and use higher octane in the summer. I run 93 and yes, don't empty the tank and it will hurt less.
     
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  10. Raptorguy1

    Raptorguy1 Full Access Member

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    Should have bought a scab. Only takes 26 gallons.
     

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