* Driving style: Aggressive acceleration and braking consume more fuel.
* Terrain: Driving uphill or in heavy traffic reduces fuel efficiency.
* Vehicle condition: A poorly maintained engine might get fewer miles per gallon.
* Fuel remaining in the tank: The light comes on when a certain amount of fuel is *left*, but that amount varies slightly even between identical vehicles.
While some sources might give estimates, it's best to assume you have only about 30-50 miles left once the low fuel light illuminates. It's far safer to refuel sooner rather than later to avoid the risk of running out of gas entirely. Running out of fuel can damage your fuel pump.