What Does the “E” on Some Car Gear Sticks Mean?

Drivers are familiar with the letters and numbers displayed on vehicle gear selectors. Automatic cars commonly use “P” for Park, “R” for Reverse, “N” for Neutral, and “D” for Drive. Some vehicles also include additional settings designed for specific driving conditions.

But what does the letter “E” mean when it appears on a gear selector in certain older vehicles?

In some models, “E” stands for Economy mode. This setting was designed to help reduce fuel consumption by changing how the vehicle's transmission operated. However, its exact function depended on the make, model, and transmission design.

The feature offers an interesting glimpse into how car manufacturers have approached fuel efficiency over the years.

What Did the “E” Setting Do?

In vehicles equipped with an Economy setting, selecting “E” could encourage the transmission to operate in a way that favored fuel efficiency over rapid acceleration.

Depending on the vehicle, this might involve shifting into higher gears earlier, avoiding unnecessary downshifts, or limiting the engine's operating speed under suitable driving conditions.

The goal was to reduce fuel use during ordinary driving, particularly when the driver did not need strong acceleration.

However, an Economy setting did not work identically in every car. Some systems changed transmission behavior, while others adjusted engine or throttle response. Drivers should consult the owner's manual to understand the function of a specific selector.

Why Fuel-Efficient Driving Modes Became Less Unusual

As automotive technology developed, manufacturers gained more ways to improve efficiency without relying on a separate gear marked “E.”

Modern vehicles may use electronically controlled transmissions, engine management systems, and sensors to adjust performance according to driving conditions. Some models also offer selectable driving modes, including Eco, Normal, and Sport.

These systems can influence throttle response, gear selection, air-conditioning operation, or other vehicle settings, depending on the design.

Although the technology has advanced, the underlying objective remains similar: to balance fuel consumption, performance, and driving comfort.

Is an “E” Gear the Same as Eco Mode Today?

Not necessarily.

An “E” marking on an older gear selector may identify a transmission-specific Economy setting. In a newer vehicle, an Eco button or driving mode may control several electronic systems rather than select a particular transmission gear.