• zeppo
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    1 year ago

    I think actually I was thinking the extra-high octane gas labeled ‘for collector vehicles only’.

    • die444die
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      1 year ago

      Ah okay I’ve not come across that one myself. It’s also possible certain states have different regulations (if we are talking about the US).

      • zeppo
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        1 year ago

        It prevents knocking in sensitive vintage vehicles, which were designed for leaded gas, too. That article also covers why ethanol can be harmful for them.