Overdrive – If your car is supplied with overdrive gearing, try to make good use of it as soon as you reach your cruising destination.
Fill up before sunrise – Gas rapidly expands when exposed to heat. A gas pump measures volume of gas pumped, not the density, which means, the gallon of gas you buy at 6 PM will have less gas in it than the gallon you buy at 5 AM. Fueling up during the coldest part of the day, which is just before daybreak, is the best decision.
Multitask – Take the time to try and organize your daily driving schedule so that you can lessen your overall driving time.
Be frugal – Gas stations will sometimes have special discount days. Pay attention to when and where they are and plan your fill up on those days.
Be cool – despite popular belief there is no relation to air conditioner use and miles per gallon whatsoever. Read more about this on Consumer Reports.org.
Alter your commute time – Talk to your employer about changing your hours so that you can commute outside of rush hour.
Shift gears – Running your automobile at high speeds in a low gear can use about 45 percent more fuel than if you were driving in the right gear.
Invest in some new spark plugs – If yours have over 30,000 miles, then it’s definitely time to change them.
Avoid drive through lines at restaurants – Park your car and go inside to order your food.