fuel gauge
fuel indicator

They may have a fuel gauge and a Pressure measurement.

"The price range symbol was supposed to be a fuel gauge," she said.

According to the fuel gauge, they had plenty of gasoline.

I looked at the fuel gauge and saw it read Empty.

He looked at the fuel gauge and saw it had dropped under a half.

But his fuel gauge read over half full and he wasn't hungry.

After getting into the car, I turn the engine on and look at the fuel gauge.

Peter checked the time, the distance they had come, and the fuel gauge.

The red empty marker on the fuel gauge were left white.

With a total range of about 310 miles, you need to keep your eye on the fuel gauge as well.