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Improve Your Fuel Economy

written by streetsidemechanic | March 2, 2011

A few tips to help you save money at the pumpBurning money doesn’t appeal to most of us, yet that is exactly what many of us feel we are doing when we stop at the gas station to top off the fuel in our cars.  We search for the best price possible and take a deep breath as we jam the nozzle into the side of the car, understanding that we will have to do it again in a matter of days.  While we have little control over the ever-changing price of gas, there are some things we can do to improve our fuel economy.

1. Handle the Pressure
If left unattended, tire pressure can decrease by 1% – 5% each month.  An under-inflated tire creates greater rolling resistance, which means your engine must work harder to move your vehicle.  Make sure you check your tire pressure at least monthly and add air as required.  The recommended pressure for your tires can be found in your owner’s manual or, in most cases, on the driver’s side door jamb.  Keep a tire pressure gauge in your glove box.

2. Take it Easy
Aggressive driving habits can take a toll on fuel economy.  If you like to mash the gas pedal and stomp on the brakes, you may be having fun but you will pay for it at the gas pump.  If you want to save fuel, concentrate on driving as smoothly as possible—this means you need to avoid jack-rabbit starts and regular hard braking.  On the highway, your ideal speed for fuel economy is 55 to 65 mph.  75 mph may be more fun for you than 65 mph, but you could pay for it with a 14% decrease in gas mileage.

3. Minimize Idling
When your car is idling, you are burning fuel without going anywhere.  For all intents and purposes, you are getting a whopping 0 miles per gallon.  If your car is going to idle for more than 60 seconds or so, you are better off turning the car off and restarting when ready to move.

4. Keep it Maintained
Following the recommended maintenance schedule for your vehicle will keep your car in tip-top shape overall and will allow it to operate with much greater efficiency.  There are a few maintenance items on your car that will cost you fuel if not properly maintained.  Fouled spark plugs, dirty air filters and clogged fuel filters can all contribute to a noticeable decrease in fuel economy.  Keep your vehicle maintained.

5. Lighten Up
A heavier car takes more fuel to move than a lighter car.  If you are forcing your car to carry around excess weight, then your engine will need to work harder to get you and your vehicle from point ‘A’ to point ‘B’.  Remove any unnecessary items from your trunk, back-seat or truck bed.  An extra 100 pounds of weight can cost you up to a 2% decrease in gas mileage.

There are plenty of additional ideas to maximize your fuel economy; however, they all boil down to minimizing the work your engine has to do to move you and your car around.  Our tips may not make you rich, but they may help you hang on to some of your hard earned money.

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  • StreetsideStig

    I just changed my fuel filter the other night and have already noticed a huge improvement in fuel economy. I wish I wouldn’t have let it go so long.

  • Anonymous

    I purchased a cool air intake to help improve my fuel economy, it increased the power a great deal but it appears that the fuel economy has suffered as a result.

  • vetteguy

    jmkmt…you are experiencing a classic side effect of installing a highly efficient performance part like a cold air intake! Too often more horsepower turns into our need to use it…ie: heavy foot syndrome. Enjoy the power, but don’t let too much of a good thing take away the fuel economy benefit!

  • Robwoodss

    put max pressure in tires usually 44psi. They will last longer and increase mpg’s. max pressure found on sidewall of tire not in the owners Manuel!!

  • skier1

    Watch out with max pressure. It makes the center tread area bulge outward more than the shoulder area resulting in faster wear in the middle of the tires, hence you need new tires sooner. More air is better for lower rolling resistance but on most vehicles I wouldn’t go more than 15% of the max inflation for the vehicle. The max air for the tire is if you carry or tow heavy loads temporarily. It helps fight heat build up. If you leave the tires aired to the max, what you save in gas you loose in tire wear and loss of traction. You’ll need the gas savings to buy new tires sooner. Don’t over do it.

  • Cobranut_1

    Slightly higher pressure is ok but don’t go over the vehicle spec by more than 10% or so.

  • http://profiles.google.com/safeauto.producer Sukhdeep Singh

    “Did you know that air conditioning usage can lower the fuel economy of your car by at least 20%, or in other words, by 62 gallons of gas per year?”

    http://www.safeauto.com/blog/post/2011/08/16/Is-Your-Air-Conditioning-Sucking-Up-Gas.aspx

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