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The following factors can lower your
vehicle’s fuel economy:
Aggressive driving (hard
acceleration and braking)
Excessive idling, accelerating and
braking in stop-and-go traffic
Cold engine operation (engines
aremoreefficientwhenwarmed
up)
Driving with a heavy load or the
air conditioner running
Improperly inflated tires
A properly maintained vehicle
maximizes fuel economy. Poor
maintenance can significantly reduce
fuel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the
information display (see
on page ).
For example:
An under-inflated tire increases
‘‘rolling resistance,’’ which reduces
fuel economy.
It puts a heavier
load on the engine, increasing fuel
consumption.
In
particular, a build-up of snow or
mud on your vehicle’s underside
adds weight and rolling resistance.
Frequent cleaning helps your fuel
economy.
Rapid
acceleration, abrupt cornering,
and hard braking increase fuel
consumption.
Aerodynamic drag has a big effect
on fuel mileage at speeds above 45
mph (75 km/h). Reduce your
speed and you reduce the drag.
Trailers, car top carriers, roof
racks and bike racks are also big
contributors to increased drag.
If your vehicle has a
manual transmission, you can
boost your fuel economy by up
shifting as early as possible.
Idling
results in 0 miles per gallon.
The A/C
puts an extra load on the engine
which makes it use more fuel. Use
the fresh-air ventilation when
possible.
Combine several short trips into
one. A warmed-up engine is more
fuel efficient than a cold one.242
Fuel Economy Factors
Improving Fuel Economy
Owner’s
Maintenance Checks
Use the recommended viscosity
motor oil, displaying the API
Certification Seal (see page
).
Maintain proper tire inflation
Avoid carrying excess weight in
your vehicle
Keep your vehicle clean
Drive moderately
Observe the speed limit
Always drive in the highest gear
possible
Avoid excessive idling
Minimize the use of the air
conditioning system
Plan and combine trips
245
Fuel Economy
Vehicle Maintenance
Drive Efficiently
194
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