You might have noticed that some gas stations occasionally offer specials on unleaded 88 octane gas—also known as E15—which contains 15 percent ethanol. Ethanol is an alcohol that’s derived from corn.

And Now, a Warning Before you dive into Gemini, be sure to understand its faults and limitations. Like any of today’s AI chatbots, Gemini is far from perfect. As Google points out, its responses may ...