• Flying Squid@lemmy.worldOP
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    8 months ago

    It’s 10% in the winter and 15% in the summer (at least that’s the legal limit), although I think that’s changing. So I guess they just said what the hell and put on both stickers?

      • xkforce@lemmy.world
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        8 months ago

        Weve known Lead was poisonous since the romans and we decided to add a derivative of it to our fuel on a massive scale. We sure are smart.

          • xkforce@lemmy.world
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            8 months ago

            Thomas midgley. He invented CFCs to replace the previously most commonly used refrigerants: Sulfur Dioxide and Ammonia which are both pretty nasty and should have been replaced… just not with CFCs. Leaded gasoline was invented to help prevent knocking and increase fuel efficiency. Today we use other additives and are better able to reform low octane hydrocarbons into higher octane ones with modern catalysts. Then as another commentater mentioned, he contracted Polio later in life and invented a sling and pulley system to help him out of bed.

        • partial_accumen@lemmy.world
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          8 months ago

          Woah. I didn’t know leaded gasoline was still available anywhere.

          General Aviation fuel (think propeller planes) use Avgas still uses tetraethyl lead, which is “leaded gasoline”.

        • Corkyskog@sh.itjust.works
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          8 months ago

          So there’s a shit load of caveats. One there’s only a few places i know in the state that sell it. It’s supposedly only for small engine purposes, and it’s illegal to pump into a car. There’s daily limits imposed by the gas station and weekly and yearly limits imposed by the state I think, but I never looked them up.