1. Always check the tire pressure
2. Make sure the air filter is clean
3. Avoid idling. Think about it — idling gets you 0 miles per gallon.
4. Avoid aggressive driving, such as speeding, rapid acceleration, and hard braking, which can lower your highway gas mileage by up to 33% and your city mileage by 5%.
5. Avoid high speeds. Above 60 mph, gas mileage drops rapidly. For every 5 mph above 60 mph, it’s like paying an additional $0.30 per gallon of gasoline.
6. Avoid keeping heavy items in your car; an extra 100 pounds in your vehicle could increase your gas costs by up to $.08 cents per gallon.
7. Combine errands when possible.
8. Use the grade of motor oil your car’s manufacturer recommends. Using a different motor oil can lower your gas mileage by 1%-2%.
9. Get regular maintenance checks to avoid fuel economy problems due to worn spark plugs, dragging brakes, sagging belts, low transmission fluid, or transmission problems.
10. Park in the shade on sunny days to keep vehicle cool, and use windshield reflector.