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  1. TntSeries

    Octane Adjust Ratio (OAR)

    The Ford Octane Adjust Ratio (OAR) is a system that adjusts the ignition timing to improve engine efficiency and power. The OAR uses feedback from the knock sensor and fuel quality to determine when to adjust the ignition timing. How it works The OAR starts at 0.0 and adjusts towards -1.0 when...


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