He nodded, with a quick glance at the gas gauge.

For what it was worth, the gas gauge claimed almost half a tank.

I reminded myself to keep an eye on the gas gauge.

It was late in the day, and the gas gauge registered less than a quarter full.

But as one hour turned into two, and Tom began to eye his gas gauge, he'd become angry.

According to the label on the gas gauge, it was a diesel and more than half full.

The gas gauge showed that the tank was nearly empty.

The jeep didn't explode, and the gas gauge still read half full.

Forty minutes later, he noticed that his gas gauge was down.

He glanced down at the gas gauge and it was close to the halfway mark.