Spark plugs

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by PriusKyle, Mar 16, 2022.

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  1. OptimusPriustus

    OptimusPriustus Active Member

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    Vehicle:
    2010 Prius
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    Answer: Carbon fouling occurs when the spark plug firing end does not reach the self-cleaning temperature of approximately 450°C (842°F). Carbon deposits will begin to burn off from the insulator nose when the self-cleaning temperature is reached. When the heat range is too cold for the engine speed, the firing end temperature will stay below 450°C and carbon deposits will accumulate on the insulator nose. This is called carbon fouling.

    https://ngksparkplugs.com/en/resources/spark-plug-basics
     
    #21 OptimusPriustus, Oct 6, 2022
    NewShockerGuy and Grit like this.
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