How many hours does .3 gallons of gas last in a push lawn mower?

The duration that 0.3 gallons of gas lasts in a push lawn mower depends on the mower's fuel consumption rate, which typically ranges from 0.5 to 1.0 gallons per hour. Assuming an average consumption of 0.75 gallons per hour, 0.3 gallons would last about 24 minutes. However, this can vary based on the mower's engine size, grass height, and cutting conditions.