10 tips for better gas mileage Unless you drive a hybrid car or ride your bike to work, there¿s no way to escape the high gas prices. But there are ways you can get better gas mileage out of our vehicles ¿ which will save you money in the long run, according to Edmunds.com, an online resource for automotive information. Here are 10 to help you get better gas mileage: 1. Follow the Recommended Maintenance - A well-maintained vehicle will operate more efficiently. Fouled spark plugs, dirty air filters and clogged fuel filters will diminish fuel economy. 2. Keep Tires Properly Inflated - Under-inflated tires require more energy to roll; properly inflated tires can improve fuel economy by as much as 3 percent. 3. Take a Load Off - Heavier vehicles require more energy to move. Pack light and remove unnecessary items from the car. 4. Don't Drive Aggressively - Hitting the gas pedal hard after stopping, slamming on the brakes and speeding all decrease fuel efficiency. 5. Use the Highest Gear Possible - Lower gears use more power, so manual transmission drivers should switch to a higher gear when driving at a steady speed, and automatic transmission drivers should avoid using "sport" mode. 6. Use Cruise Control Selectively - Cruise control is a great asset on flat roads, but isn't the most efficient on hilly terrain. 7. Think Clean - Keeping your car washed and waxed improves its aerodynamics, thereby improving fuel efficiency. On a long trip, a quick run through a gas station car wash might more than pay for itself. 8. Avoid Excessive Idling - An idling car burns fuel. Whenever possible, turn your car off while waiting, and try to avoid drive-through windows and long toll booth lines. 9. Think Before You Ventilate - Air conditioning consumes more fuel, while rolled down windows decreases aerodynamics. Roll down windows when in slow-moving traffic; use the air conditioner when traveling at high speeds. 10. Combine Your Errands - Cold engines use more fuel than warm engines. Combining errands means the engine will be warmer for more of the trip.