Keeping your tires inflated properly can improve gas mileage by more than 3%. Every gallon of gasoline saved keeps 20 pounds of carbon dioxide out of the atmosphere!

• 保持轮胎充气能令每单位燃料的行驶哩数增加超过3%25。而每节省一加仑汽油，大气中的二氧化碳就能减少20磅。