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The f ollowing f actors can lower your
vehicle’s f uel economy:
Aggressive driving (hard
acceleration and braking)
Excessive idling, accelerating and
braking in stop-and-go traf f ic
Cold engine operation (engines
aremoreefficientwhenwarmed
up)
Driving with a heavy load or the
air conditioner running
Improperly inf lated tires
A properly maintained vehicle
maximizes f uel economy. Poor
maintenance can signif icantly reduce
f uel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the
inf ormation display (see on page ).
For example: Rapid
acceleration, abrupt cornering,
and hard braking increase fuel
consumption.
If your vehicle has a
manual transmission, you can
boost your f uel economy by up
shif ting as early as possible.
Aerodynamic drag has a big ef f ect
on f uel 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.
Idling
results in 0 miles per gallon.
An underinf lated tire increases
‘‘rolling resistance,’’ which reduces
f uel economy.
It puts a heavier
load on the engine, increasing f uel
consumption.
In
particular, a build-up of snow or
mud on your vehicle’s underside
adds weight and rolling resistance.
Frequent cleaning helps your f uel
economy.
323
CONT INUED
Fuel Economy Factors
Improving Fuel Economy
Owner’s
Maintenance Checks Use the recommended viscosity
motor oil, displaying the A PI
Certif ication Seal (see page
). Drive moderately
Always drive in the highest gear
possible
Observe the speed limit
Avoid excessive idling
Maintain proper tire inf lation
A void carrying excess weight in
your vehicle
K eep your vehicle clean
326
Vehicle Maint enance Drive Ef f icient ly
Fuel Economy
Bef ore Driving
255
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2009 Ridgeline
