Do you know what happens when you step on the gas with low octane fuel?
The cars computer delivers a large gulp of extra fuel!
The car cannot immediately change the timing, besides the pinging occurs BEFORE the plugs spark.
I got fooled bny a french gas pump and got a tankful of very low octane while traveling through Canada.
That tankful got 5 MPG less than all the other tankfulls from Massachusetts to Minnesota and back again.
Does your timing change permanently, or does the process occur again and again?
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