this post was submitted on 18 Oct 2024
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It's also not necessary to use high octane fuel if the manufacturer recommends it. Modern cars have sensors and computers that adjust how it runs if you fill it with cheap gas so it doesn't knock or anything.
Running on a bad tune is not the same as running economically, octane sensors just determine the amount of tune modification needed to stay as economical as possible.
If you run a tank of the correct fuel and watch your st/lt trims then do the same with improper gas you'll notice they're not at all the same numbers.
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