1. By filling up your car's gas tank when it's cooler outside, you can save money and help reduce air pollution.
Answer: True. When gasoline is warmed, it gives off vapors that fill your gas tank faster than the liquid gas alone. That means the sensors in the gas pump nozzle stop the flow of gasoline sooner and your car emits the vapors as pollution. If you wait to fill-up until it's cool outside, the vapors will be minimized, so you'll save money, get more gas in your tank, and you won't pollute the air! Source: U.S. Department of Energy and U.S. Environmental Protection Agency http://www.epa.gov/donttopoff/
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2. Topping off your gas tank can waste money and pollute the air.
Answer: True. Spilling one ounce of gasoline that then evaporates produces the same ozone-producing VOC emissions as a car driving 56 miles. Source: Based on original research done by Sonoma Technology Inc., presented at the U.S. Environmental Protection Agency National Air Quality Conference. Baltimore, MD. February 2004. http://www.airnow.gov/index.cfm?action=conference2004.aq, Sunday Session, part 2. Tim Dye's PowerPoint, page 92.
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3. Car maintenance, such as tune-ups, changing the oil, replacing air filters, and keeping tires properly inflated can improve gas mileage and reduce your car's emissions.
Answer: True. Replacing a clogged air filter can improve your car's gas mileage by as much as 10%—saving up to 55 gallons of gasoline, or about three trips to the gas station each year. Source: Original research done for Federal Highway Administration in August 2003, based on FHWA Highway Statistics 2001, Table VM-1 (http://www.fhwa.dot.gov/ohim/hs01/vm1.htm) and U.S. Department of Energy and U.S. Environmental Protection Agency (http://www.fueleconomy.gov/feg/maintain.shtml).
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4. Buying a hybrid-electric or other low-emission and fuel-efficient car can save you money and reduce air pollution.
Answer: True. Driving a vehicle that gets 30 miles per gallon rather than one that gets 20 miles per gallon would save you nearly $730 in gasoline a year, or more than $3,600 over five years. Source: U.S. Department of Energy and U.S. Environmental Protection Agency (http://www.fueleconomy.gov/feg/choosing.shtml) (Gasoline cost adjusted to $2.91/gallon.)
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5. Slowing down on the highway can save more than your life. It can also save you money.
Answer: True. Driving a typical passenger vehicle at 75 miles per hour uses 18% more gasoline than driving at 65 miles per hour, and 31% more gasoline than driving at 55 miles per hour. That means, at today's prices, you're paying an additional 20 cents per gallon of gasoline for every 5 mph over 60 mph you're driving. Source: U.S. Department of Energy and U.S. Environmental Protection Agency. http://www.fueleconomy.gov/feg/driveHabits.shtml.
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