What the “E” on Old Car Gear Shifts Really Means — And Why Drivers Are Just Discovering It Now

before modern fuel-saving technology and smart computerized driving systems, the mysterious “E” stood for Economy mode — an early attempt by automakers to improve fuel efficiency during everyday driving.

Let me walk you through the fascinating history of this forgotten gear, why it disappeared, and why a new generation is just now discovering it.

What Does “E” Actually Stand For?

E = Economy.

Yes, it’s that simple. Economy mode was designed to improve fuel efficiency by changing how the transmission shifted.

What

it did: When engaged, the transmission would shift to higher gears at lower RPMs (revolutions per minute). The engine wouldn’t

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