Improving fuel economy not only saves drivers money, it also benefits the environment by releasing fewer emissions into the air and reduces a nation's dependence on oil and oil imports. Reducing the amount of driving we do - by carpooling, using public transportation and combining trips - has the greatest effect on how much gas each person uses. That said, there are many ways to improve fuel economy when we do drive. These primarily involve driving more efficiently and making sure our cars are properly maintained. (For related reading, also see 5 Car Repairs You Should Do Yourself.)
IN PICTURES: 20 Lazy Ways To Save Money
Drive More Efficiently
Our driving habits have a significant impact on fuel efficiency:
1. Go Easy on the Pedals
Speeding, braking and rapid acceleration waste gas. Depending on the type of vehicle, poor driving habits can negatively affect fuel economy between 5% and 33%. Based on the current national average of $3.12 per gallon (for regular gasoline), driving sensibly, and not like a race car driver, can lead to an equivalent gas savings of between 16 cents and $1.03 per gallon.
2. Slow Down
Gas mileage decreases above 60 miles per hour. According to fueleconomy.gov, for every five miles per hour that exceeds 60 mph, drivers pay an equivalent of about 24 cents more for each gallon of gas. While each vehicle has its own optimal speed for fuel efficiency, speeding can result in 7% to 23% reduced fuel economy. Driving at slower speeds can save 21 to 71 cents per gallon.
3. Leave Extras at Home
An additional 100 pounds in your car can reduce gas mileage by up to 2%. The reduction is relative to the vehicle's weight: Smaller vehicles are more affected by increased weight than larger ones. For every 100 pounds in extra weight, plan on spending up to 6 cents more per gallon.
4. Use Cruise Control (When Appropriate)
According to Edmunds.com, using cruise control under appropriate conditions (avoiding use during especially hilly terrain) can improve fuel economy by up to 14%. That's a savings of about 43 cents per gallon.
5. Turn off the Car
Idling gets zero miles per gallon and collectively consumes several billion gallons of fuel per year, according to the U.S. Department of Energy. The California Energy Commission (CEC) advises that vehicles should be turned off if the expected wait will be longer than 10 seconds, since an idling vehicle can burn as much as one gallon of gas each hour. Turning the car off can save about 5 cents per minute.
IN PICTURES: Top 6 Mindless Money Wasters
6. Check Tire Pressure
A little bit of vehicle maintenance can go a long way in improving gas mileage. According to the U.S. Department of Energy, 1.25 billion gallons of gasoline - approximately 1% of total consumption - are wasted each year on underinflated tires. Tires can lose about 2 pounds per square inch (psi) per month. Each tire that is underinflated by 10 psi reduces fuel economy by about 3.3%. Four tires that are underinflated by 10 psi, then, would reduce a vehicle's fuel economy by a substantial 10% at an added cost of 31 cents per gallon.
Follow the guidelines in your vehicle's owner's manual (these recommendations also appear on a sticker inside the driver's side door jamb) - and not what is stamped onto the tire itself.
7. Replace Spark Plugs
The National Institute for Automotive Service Excellence indicates that bad spark plugs can decrease fuel economy by up to 30%, and can cost drivers up to about 94 cents per gallon at today's prices. If a car's gas mileage suddenly drops, there's a good chance it's because of misfiring spark plugs.
8. Check Alignment
Misaligned tires drag instead of roll freely. Improper alignment can reduce fuel efficiency by as much as 10% - about 31 cents per gallon. In addition, the tires can wear out more quickly. Tires that are out of balance (symptom: vibration in the steering wheel) can cause uneven tire wear, which can result in lower gas mileage. Tires should be balanced and rotated according to the vehicle's owner's manual to improve tire performance and fuel economy.
9. Fill Your Tank Early in the Morning - or Late at Night
Fuel is dispensed by volume. If you fill your tank when it is coolest outside - early in the morning or late at night, and avoid the heat of the day - the fuel will be more dense. As a result, you will get more gas for the same amount of money.
Good for You, Good for the Environment
Reducing the amount of driving we do, whether it's by carpooling or foregoing an unnecessary trip, is perhaps the most effective way to decrease the amount of gas that each person uses and make fill-ups at the gas station last longer. Proactive steps can be taken to improve fuel efficiency by paying attention to and changing gas-guzzling driving habits, and following a vehicle's maintenance schedule. Improved gas mileage is good for you, good for your car and good for the environment. (For additional reading, see Discontinued Car Brands - To Buy Or Not To Buy?)
Home & AutoLearn which cars will save you money in 2015, whether you are looking for a compact, mid-size or full-size car, or even a pickup truck.
Home & AutoAutos rarely appreciate in value. But if you want a set of wheels that'll least hold its value over time, these cars can go the distance.
Stock AnalysisLearn about Whole Foods Market, Inc., and discover how Whole Foods pricing actually compares to that of other grocery store operations.
Stock AnalysisLearn about the four quick service restaurants with attractive investment theses and growth prospects that can be valuable additions to your portfolio.
Stock AnalysisUnderstand how Coca-Cola implemented the successful "Share a Coke" campaign. Learn about the top three reasons why the campaign was successful.
Stock AnalysisIf you're not sure where Ford and General Motors are going, you might want to look at this auto investment option instead.
Stock AnalysisLearn about the top six companies that make an attractive investment for investors looking for stocks for dividend income investing.
Mutual Funds & ETFsObtain information on, and analysis of, some of the best performing mutual funds that offer exposure to the consumer cyclicals sector.
InvestingAll businesses face adversity, and Procter & Gamble is no exception. We take a look at recent developments affecting this global giant.
EconomicsThe manufacturer’s suggested retail price (MSRP) is just what it describes – the price manufacturers recommend that retailers charge for their goods.
While your auto insurance company cannot pull your full motor vehicle report, or MVR, it does pull a record summary that ... Read Full Answer >>
In microeconomics, utility represents a way to relate the amount of goods consumed to the amount of happiness or satisfaction ... Read Full Answer >>
There are many ways to achieve product differentiation, some more common than others. Horizontal Differentiation Horizontal ... Read Full Answer >>
An original equipment manufacturer (OEM) is a company that manufactures a basic product or a component product, such as a ... Read Full Answer >>
Generally speaking, the retail sector is highly seasonal. Almost invariably, sales in the retail sector are highest in the ... Read Full Answer >>
Retail is the catch-all phrase for the sale of final goods to consumers; a retail transaction is considered an "end" and ... Read Full Answer >>