LAST MODIFIED:The amount of gas an idling car uses varies depending on engine type, size, etc. Transit buses consume the most gas while idling, nearly 1 gallon per hour. A car driving 65 MPH that gets 25 MPG uses about 1.6 gallons of gas per hour. On average, an idling average compact uses around 90% less gas than one that is being driven. See the table below: *If you are unable to see the full chart on a mobile device, change your browser to view the page in desktop mode. Instructions for doing this are here.
|VEHICLE TYPE||FUEL TYPE||ENGINE SIZE (LITER)||APPROXIMATE VEHICLE WEIGHT (LBS)||APPROXIMATE IDLING FUEL USAGE (GAL/HR)|
|Medium Heavy Truck||Gas||5-7||23,000||0.84|
|Medium Heavy Truck||Diesel||6-10||28,000||0.44|
- It takes millions of years for fossil fuels to develop.
- The fossil fuels we use today began forming during the Carboniferous Period, which was before dinosaurs ruled the Earth.
- Around 90% of our energy comes from fossil fuels.
- U.S. Department of Energy – Fact #861 February 23, 2015, Idle Fuel Consumption for Selected Gasoline and Diesel Vehicles
- SoftSchools.com – Fossil Fuel Fun Facts