ENGINE CHECK LIGHT CAME ON
2010 CHEVROLET CAMARO
FEBRUARY, 3, 2016 AT 6:05 PM
I added a bottle of 108 octane to a full tank of gas.I felt the power but the light concerns me! Should I worry? Mike
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Higher octane doesn't add any power. The higher the octane rating, the harder it is for the gas to ignite. Very high-compression engines suffer from pre-ignition, the same thing that is desirable in igniting diesel fuel. In gas engines it must be avoided. That is the purpose of the additives that raise the flash point. Using a higher octane fuel allows the engineers to to design an engine that will produce more power without the threat of pre-ignition. In any engine that doesn't need that higher octane, not only are you wasting your money, you are likely to get spark-related misfires too.
Yes, you should worry about the Check Engine light. The Engine Computer detected a problem, most likely a misfire, set a diagnostic fault code, and turned the light on to tell you. If a different problem occurs and is detected that could turn into a serious problem, you'll never know because the light is already on.
Wednesday, February 3rd, 2016 AT 6:25 PM