E, on a gauge Crossword Clue

 The answer to the crossword clue "E, on a gauge" is EMPTY.

The letter E is often used to indicate empty on gauges, such as fuel gauges and temperature gauges. This is because the E is the first letter of the word "empty".

For example, if a fuel gauge is pointing to the E, it means that the fuel tank is empty and needs to be filled up. Similarly, if a temperature gauge is pointing to the E, it means that the engine is cold and needs to be warmed up.

Here are some examples of how to use the word "empty" in a sentence:

The gas tank is empty.

The battery is empty.

The glass is empty.

The room is empty.

The street is empty.

I hope this helps!