Understanding OAR. I have been having some issues. - Page 4

Understanding OAR. I have been having some issues.

This is a discussion on Understanding OAR. I have been having some issues. within the F150 Ecoboost Performance forums, part of the F150 Ecoboost Garage category; Originally Posted by Burns363R I think bad fuel was the reason for the high oar. Im still seeing the OAR creep up to +.5 when ...

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Thread: Understanding OAR. I have been having some issues.

  1. #31
    Ecoboost Regular mattr66's Avatar

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    Quote Originally Posted by Burns363R View Post
    I think bad fuel was the reason for the high oar. Im still seeing the OAR creep up to +.5 when driving gently. When im driving spiritedly i see the oar drop to -.5 pretty easy. I switched to a full synthetic Mobile 1 SN+, doesnt seem to have changed anything. The truck just seems to have random knock issues. It comes and goes. All using 1 tank of fuel over the course of a couple weeks i will see it swing all over the dam place.
    Oar doesn't mean anything unless your calibrator set it up properly

    Sent from my Moto Z (2) using Tapatalk
    snakebitten likes this.

  2. #32
    Ecoboost Veteran Burns363R's Avatar

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    Quote Originally Posted by mattr66 View Post
    Oar doesn't mean anything unless your calibrator set it up properly

    Sent from my Moto Z (2) using Tapatalk
    Calibrator?
    12' F-150 SCREW, FX4, 3.5TT, CRP Manifolds/SPD Turbo Adapters/MBRP Offroad DP/AFE Intake/170 tstat/CP-E intercooler, 3.73 gear, 33" Duratrac

  3. #33
    Gold Supporting Member snakebitten's Avatar
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    Quote Originally Posted by Burns363R View Post
    Calibrator?
    Your "tuner"

    You have a good one.

    Sent from my SM-N950U using Tapatalk
    2018 KingRanch Kingsville Edition- Gen2 3.5 - Runs SO good on Factory tunes. Simply amazing. Good Job Ford

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  5. #34
    Ecoboost Regular w00t692's Avatar

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    LSPI isn't much of a problem on these engines, they will downshift before getting into it or they will refuse to run the cam timing to make enough load.

    As far as OAR, on my 17 it's like this from what i can see:

    -1.0 = inferred octane of 85
    0 = inferred octane of 87
    1.0 = inferred octane of 91

    I guess gen2's are exactly opposite lol.
    Last edited by w00t692; 05-29-2019 at 10:50 AM.

  6. #35
    Ecoboost Regular mattr66's Avatar

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    Quote Originally Posted by Burns363R View Post
    Calibrator?
    The person making the calibration.

    Sent from my Moto Z (2) using Tapatalk

  7. #36
    Gold Supporting Member snakebitten's Avatar
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    Quote Originally Posted by mattr66 View Post
    The person making the calibration.

    Sent from my Moto Z (2) using Tapatalk
    Lol. You are so......... Well, like Matt.

    Good thing I kinda get it.

    Sent from my SM-N950U using Tapatalk
    2018 KingRanch Kingsville Edition- Gen2 3.5 - Runs SO good on Factory tunes. Simply amazing. Good Job Ford

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