Tucked into your car’s dashboard is a tiny arrow that points to the side of the car with the gas tank cap. Who came up with it? ELT tracks down the inventor of this tiny, brilliant car hack. Plus, do you really need to warm up your car?

Guests: Automobile aficionado Jason Torchinsky of Jalopnik; gas tank-indicator arrow inventor Jim Moylan. Thanks to caller Jonathan, the listeners who shared their car-spiracies, and the car experts who answered our questions.

Have a tiny but important invention you want to know more about? Tell us who belongs on ELT’s Bulletin Board of Glory™. Email us at [email protected].

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