* Driving style: Aggressive acceleration and braking will reduce your range.
* Terrain: Driving uphill or in stop-and-go traffic consumes more fuel.
* Vehicle condition: A poorly tuned engine or other mechanical issues can affect fuel efficiency.
* How much fuel was left when the light came on: The warning light typically illuminates when there's still about 1-2 gallons left, but this varies slightly by vehicle.
Generally, you can expect to get around 20-40 miles after the gas light turns on in a vehicle like a 2002 Chevy Cavalier. However, it's strongly advised to refuel as soon as possible once the light comes on. Running the tank completely empty can damage the fuel pump. The safer option is to refuel when the warning light appears to avoid potential problems.