* Engine size: The 1998 LeSabre came with different engine options (3.8L V6 was common). A larger engine generally uses more fuel.
* Driving conditions: City driving consumes significantly more gas than highway driving due to stop-and-go traffic. Things like hills, weather (headwinds), and aggressive acceleration also impact fuel economy.
* Vehicle maintenance: Properly maintained vehicles (tire pressure, tune-ups, etc.) tend to get better gas mileage.
* Vehicle condition: Worn-out parts can negatively affect fuel economy.
To get an estimate, you'd need to find the EPA estimated fuel economy for the specific 1998 Buick LeSabre engine your car has (check your vehicle's documentation or the manufacturer's website). That EPA rating gives you miles per gallon (MPG). Then, simply divide that MPG number into one gallon to get an approximate distance.
For example, if the EPA estimate is 20 MPG, then you could expect to travel roughly 20 miles on one gallon. But remember, this is just an estimate and your actual mileage may vary considerably.
