Tips
for Improving Your Gas Mileage
With today's high gas
prices, it's worth taking a few minutes out of your day to make minor modifications
that will improve your gas mileage. ALLDATA's ASE certified technicians
have developed 22 effective tips for reducing the amount of gas you use
while driving your vehicle:
Vehicle Tips
- Keep your tires
properly inflated, and check them frequently.1
- Keep your front
suspension and steering in proper alignment.
- Use the thinnest
viscosity oil that your car's manufacturer recommends (5W-30 for most
newer cars).
- Keep your engine
in proper mechanical condition.
- Keep your engine
in tune and make sure the air and fuel filters are clean.
- Make sure your
brakes are not dragging.
- Repair body damage.
That crunched front fender adds aerodynamic drag - just ask any race
car driver.
- Don't use premium
fuel if your car does not require it (check your owner's manual); using
it is an unnecessary expense.
- Don't waste your
money on those late night "as seen on TV" products that are supposed
to increase your mileage.
Driving Tips
- Avoid excessive
warm-up time. Modern engines do not require it.
- Don't idle your
engine for long periods. Turn off your engine when you leave the car
or have to wait a long time.
- Avoid jack-rabbit
starts.
- Keep your speed
at 55 miles per hour or less whenever possible.
- For newer vehicles
with aerodynamic designs, close the windows and turn on the A/C when
driving on the freeway.
- For older cars
with inefficient A/C compressors, use the ventilation system and close
the windows, temperature permitting.
- Anticipate merging
traffic and stoplights - decelerate and accelerate smoothly.
- Plan your trips
wisely. If you need to go several places, plan a route that allows you
to run most or all of your errands in one outing.
- Empty the trunk!
Extra clothes, overdue library books, tools and the bag of aluminum
cans that you have been meaning to take to the recycler all weigh down
your car unnecessarily
- Car pool whenever
possible or practical.
- Listen to radio
reports for alternate routes around congested areas.
- Drive in the highest
gear possible (without lugging the engine).
- Try to keep your
speed constant. Use cruise control when on long stretches of road.
Notes:
1 According to the U.S. Department of Energy, nearly four million gallons
of gasoline could be saved nationwide each day for every one pound per
square inch (psi) of tire under-inflation, compared to the mileage if
ALL vehicle tires were kept inflated to the manufacturer's recommended
pressure. 2 The U.S. Department of Energy estimates that for 145 million
passenger vehicles idling five minutes per day, approximately four million
gallons of gasoline are consumed without going anywhere. 3 According to
the U.S. Environmental Protection Agency and Oak Ridge National Laboratory,
a vehicle loses about one percent in fuel economy for every one mile per
hour above 55 m.p.h. that it is driven. A passenger car that averages
30 miles per gallon at 55 m.p.h. could typically get 28.5 m.p.g. at 60
m.p.h., 27 m.p.g. at 65 m.p.h. and 25.5 m.p.g. at 70 m.p.h. Remember,
however, that for different speeds, the changes in fuel economy will vary
by vehicle model. 4 Each 100 pounds of needless weight will cost up to
one-half mile per gallon, on the average.
©
2000 ALLDATA LLC