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.

Angelica Leicht is a seasoned personal finance writer and editor with nearly two decades of experience but just one goal: to help readers make the best decisions for their wallets. Her expertise spans ...

In the mobile app, you can carry on a back-and-forth conversation with Gemini using your respective voices. To kick this off, tap the icon next to the microphone icon and start speaking. Gemini will ...