GASOLINE SAVINGS UPDATE 01: Scientists and fuel efficiency experts say
that for most cars, driving slower pays. Most cars get the best mileage
between 45 and 55 mph. As speeds creep higher, fuel efficiency drops. For
every mile per hour over 60 mph, fuel economy drops by an average of around
1%. How much you stand to save depends on a lot of factors. With gas at $4 a
gallon, a driver with a long commute - 400 miles a week - and a gas-guzzling
vehicle getting only 20 mpg would save $18.74 a week by slowing down
dramatically from 75 to 55 mph, extrapolating from the government's most
recent figures on the subject. Even a more moderate deceleration - from 70
to 60 mph - would save that driver $11.74 a week. In contrast, a commuter
who started with a smaller carbon footprint - driving 100 miles a week in a
car getting 30 mpg - would stand to save only a few dollars a week by
slowing down. The estimates are rough at best. The U.S. Department of
Transportation last studied the effect of
speed on fuel efficiency in 1997, and its results were based on a fleet of
nine vehicles manufactured between 1988 and 1997 - hardly what's on the road
today. "Unfortunately this analysis has not been done over, to my knowledge,
in the last 10 years," said the Union of Concerned Scientists, senior
engineer Jim Kliesch. Still, the results are striking. Slowing from 70 to 60
mph improved average fuel efficiency by 17.2%t. A big slowdown - from 75 to
55 mph - improved fuel efficiency by a whopping 30.6%. The need to conserve
gasoline is why, in 1974, in the wake of the Arab oil embargo and ensuing
fuel shortage, President Richard Nixon ordered the speed limit nationally to
be lowered to 55 mph. The limit was lifted to 65 mph in some areas in the
late 1980s, and the 55 mph national speed limit was entirely discarded in
1995. Following is a collection of sites that offer tips for getting the
best prices and for conserving gas:
. If you're planning a trip, say to visit family for Easter, visit
AAA's Fuel Cost Calculator at
http://www.fuelcostcalculator.com/. It will
help you figure the total cost of your trip. Just enter your car make, model
and year. Then select your starting city and destination. It also features a
map that shows the average fuel prices by region.
. A comprehensive site on gas prices is
http://www.fueleconomy.gov. It
will help you find the cheapest local gas prices and lists the stations to
avoid - the ones with the highest rates. You can also read tips for getting
more miles per gallon or link to the AAA's Daily Fuel Gauge Report which
displays the average price by state and metro area.
. GasBuddy
http://gasbuddy.com and GasPriceWatch www.gaspricewatch.com
are two other sites that will help you locate good prices on gas. You can
search by area, so you won't waste gas hunting cheap gas.
. If gas prices are too high, you can always share a ride!
AlterNetRides
http://alternetrides.com will hook you up with fellow
commuters.
. Alternative fuel like propane or biodiesel locations can be found by
entering your ZIP and the type of fuel you need at
http://afdcmap2.nrel.gov/locator/FindPane.asp