Porsche 911 CARRERA 4 -, Owner'S Manual

Page: 244 / 355

Fuel Economy
Fuel economy will vary depending on where,
when and how you drive, optional equipment
installed, and the general condition of your
car. A car tuned to speci  cations and correct-
ly maintained, will help you to achieve optimal
fuel economy.
Have your vehicle tuned to specifications. Air
cleaner should be dirt free to allow proper
engine “breathing”. Battery should be fully
charged. Wheels should be properly aligned.
Tires should be inflated to the correct pres-
sure.
Always monitor your fuel consumption.
Drive smoothly, avoid abrupt changes in speed
as much as possible.
Avoid jack rabbit starts and sudden stops.
Do not drive longer than necessary in the lower
gears. Shifting into a higher gear early without
lugging the engine will help save fuel.
Prolonged “warm up” idling wastes gas. Start
the vehicle just before you are ready to drive.
Accelerate slowly and smoothly.
Switch off the engine if stationary for longer
periods.
Any additional weight carried in the vehicle
reduces fuel economy. Always keep cargo to a
minimum and remove all unnecessary items.
Organize your trips to take in several errands
in one trip.
All electrical accessories contribute to
increased fuel consumption.
Only switch on the air conditioning when
necessary.
Do not drive with the Roof Transport System
mounted unless you need it.
The EPA estimated miles per gallon (mpg)
is to be used for comparison purposes,
actual mileage may be different from the
estimated mpg, depending on your driving
speed, weather conditions and trip length.
Your actual highway mileage will probably be
less than the estimated mpg.
Please observe all local and national speed
limits.
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Maintenance, Car Care