µµµ
µ µ
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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: An under-inf 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.
Rapid
acceleration, abrupt cornering,
and hard braking increase fuel
consumption. 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.
If your vehicle has a
manual transmission, you can
boost your f uel economy by up
shif ting as early as possible. Idling
results in 0 miles per gallon.
Combine several short trips into
one. A warmed-up engine is more
f uel ef f icient than a cold one. The A/C
puts an extra load on the engine
which makes it use more f uel. Use
the f resh-air ventilation when
possible.
245
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
).
Maintain proper tire inf lation
A void carrying excess weight in
your vehicle
K eep your vehicle clean
Drive moderately Observe the speed limit
Always drive in the highest gear
possible
Avoid excessive idling
Plan and combine trips
Minimize the use of the air
conditioning system
248
Fuel Economy
Vehicle Maint enance
Drive Ef f icient ly
186
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This section explains why it is
important to keep your vehicle well
maintained and how to f ollow basic
maintenance saf ety precautions.
If you have the skills and tools to
perf orm more complex maintenance
tasks on your vehicle, you may want
to purchase the service manual. See
page f or inf ormation on how to
obtain a copy, or see your dealer.
This section also includes
instructions on how to read the
maintenance minder messages on
the information display, and
instructions f or simple maintenance
tasks you may want to take care of
yourself .......................
Maintenance Saf ety .238
....................
Maintenance Minder .239
..............................
Fluid Locations .247
........................
Adding Engine Oil .248
Changing the Engine Oil and
...........................................
Filter .249
..............................
Engine Coolant .251
....................
Windshield Washers .252
....
Automatic Transmission Fluid .253
.................
Rear Dif f erential Fluid .254
.............
Transf er Assembly Fluid .255
....................................
Brake Fluid .255
....................
Power Steering Fluid .256
....................................
Timing Belt .256
.............................................
Lights .257
................
Cleaning the Seat Belts .263
.....................................
Floor Mats .263
..................
Dust and Pollen Filter .264
.................................
Wiper Blades .264
...........................................
Wheels .266
...............................................
Tires .266
...................
Checking the Battery .272
.............................
Vehicle Storage .274
321
Maintenance
Maint enance
237
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Youshouldcheckthefollowing
items at the specif ied intervals. If
you are unsure of how to perf orm
any check, turn to the appropriate
page listed.
Engine oil level Check every
time you fill the fuel tank. See
page .
Engine coolant level Check the
radiator reserve tank every time
you f ill the f uel tank. See page .
Automatic transmission Check
the f luid level monthly. See page .
Brakes Check the f luid level
monthly. See page .
Tires Check the tire pressure
monthly. Examine the tread f or
wear and foreign objects. See page . Lights Check the operation of
the headlights, parking lights,
taillights, high-mount brake light,
and license plate lights monthly.
See page .
257
184
253 184
255
267
CONT INUED
Maintenance Minder
Owner’s Maintenance Checks
Maint enance
245
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Maintenance Minder
246
: Maintenance Main Items
Replace engine oil
Replace engine oil and oil filter
Inspect front and rear brakes
Check parking brake adjustment
Inspect these items: Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections
Maintenance Sub Items
Rotate tires
Replace air cleaner element If you drive in dusty conditions, replace
every 15,000 miles (24,000 km). Maintenance Sub Items
Replace dust and pollen filter
Inspect drive belt
Replace transmission and transfer fluid
Replace spark plugs
Replace timing belt and inspect water pump
Inspect valve clearance
Replace engine coolant
Replace VTM-4 rear differential fluid
2
3
4
5
Symbol
A
B
Symbol 1
2 Symbol
6
1
1
If the message ‘‘SERVICE dUE NOW’’ does not appear more than 12 months
after the display is reset, change the engine oil every year.
See information on maintenance and emissions warranty on page .Independent of the maintenance messages in the information display,
replace the brake fluid every 3 years.
Inspect idle speed every 160,000 miles (256,000 km).
Adjust the valves during services A, B, 1, 2, or 3 only if they are noisy.
NOTE: 1:
244
If you drive primarily in urban areas that have high
concentrations of soot in the air from industry and from diesel-
powered vehicles, replace every 15,000 miles (24,000 km).
Driving in mountainous terrain at very low vehicle speeds,
towing a trailer, or driving when fully loaded results in higher
transmission and transfer temperatures. This requires
transmission and transfer fluid changes more frequently
than recommended by the Maintenance Minder.
If you regularly drive your vehicle under these conditions, have
the transmission and transfer fluid changed every 30,000 miles
(48,000 km).
If you drive regularly in very high temperatures (over 110°F,
43°C), in very low temperatures (under-20°F, -29°C), or towing a
trailer, replace every 60,000 mile (U.S.)/100,000 km (Canada)
Driving in mountainous terrain at very low vehicle speeds,
towing a trailer, or driving when fully loaded causes more
mechanical (shear) stress and fluid deterioration. This requires
differential fluid changes more frequently than recommended
by the Maintenance Minder. If you regularly drive your vehicle
under these conditions, have the differential fluid changed at
7,500 miles (12,000 km), then every 15,000 miles (24,000 km).
Maintenance Minder
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Fluid Locations
Maint enance
247
ENGINE OIL DIPSTICK
(Orange loop)
WASHER FLUID
(Blue cap)AUTOMATIC
TRANSMISSION
FLUID DIPSTICK
(Yellow loop)
BRAKE FLUID
(Gray cap)
ENGINE
COOLANT
RESERVOIR POWER STEERING
FLUID (Red cap)
: Under the gray cover RADIATOR CAP
ENGINE OIL FILL CAP
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Open the hood, and remove the
engine oil f ill cap. Remove the oil
drain bolt and washer f rom the
bottom of the engine. Drain the oil
into an appropriate container.
Your vehicle does not require any oil
additives. Additives may adversely
af f ect the engine or transmission
perf ormance and durability.
You may use a synthetic motor oil if
it meets the same requirements
given f or a conventional motor oil: it
displays the API certif ication seal,
and it is the proper weight. You must
f ollow the oil and f ilter change
intervals shown on the information
display.
Run the engine until it reaches
normal operating temperature,
then shut it off.
Changing the oil and f ilter requires
special tools and access f rom
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lif t f or this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
Always change the oil and f ilter
according to the maintenance
messages shown on the odometer
and trip meter display. The oil and
f ilter collect contaminants that can
damage your engine if they are not
removed regularly.
1.
2.
CONT INUED
Synthetic Oil
Engine Oil A dditivesChanging the Engine Oil and
Filter
A dding Engine Oil, Changing the Engine Oil and Filter
Maint enance
249
WASHER
DRAIN BOLT
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Specif ications
304
Dimensions
Weights Air Conditioning
Seating Capacities Capacities
206.7 in (5,250 mm)
78.0 in (1,980 mm)
70.3 in (1,785 mm)
Length
Width
Height
Wheelbase
Track
122.0 in (3,100 mm)
67.1 in (1,705 mm)
66.9 in (1,700 mm)
See the tire information label
attached to the driver’s doorjamb.
Gross vehicle weight rating
Gross combined weight
rating (GCWR)
Maximum load limit
(Payload)
The GCWR must be reduced 2 percent for every 1,000 feet (305
meters) of elevation. 1,530 lbs (690 kg)
1,480 lbs (670 kg)
10,088 lbs (4,575 kg)
8.5 US qt (8.0
)
3.3 US qt (3.1)
5.3 US qt (5.0)
4.2 US qt (4.0
)
4.5 US qt (4.3
)
2.14 US gal (8.1
)
1.64 US gal (6.2)
22.01 US gal (83.3)
Including the coolant in the reserve tank and that remaining in the
engine
Reserve tank capacity:
0.16 US gal (0.6
)
Excluding the oil remaining in the engine
Refrigerant type
Charge quantity
Lubricant type
HFC-134a (R-134a)
21.2 22.9 oz (600 650 g) ND-OIL8
Total
Front
Rear 5
2
3Fuel tank
Engine
coolant
Engine oil
Automatic
transmission
fluid
Approx.
Front
Rear
1:
2:
1:
2:
3:
On vehicles without moonroof or navigation system
On vehicles with moonroof and navigation system Change
Total
Change
Including
filter
Without
filter
Total
Change
Total
1
2
3 1
2
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CONT INUED
Back Window.......................................
Indicator .69
...................................
Operation .107
Battery Charging System ...........................
Indicator .62,290
............................
Jump Starting .286
..............................
Maintenance .272
............................
Specif ications .305
Bed Lights .......................................
Indicator .69
...................................
Operation .122
..............................
Bef ore Driving .179 ....................................
Belts,Seat .8,18
.........................
Beverage Holders .116
..................................
Booster Seats .50
Brakes
...........
Anti-lock System (ABS) .213
.............
Break-in, New Linings .180
...........................................
Fluid .255
............
Bulb Replacement .259,260
.......................................
Parking .111
.................
System Indicator .63,292
........................
Wear Indicators .212
.............................
Braking System .212
.................
Break-in, New Vehicle .180
..
Brightness Control, Instruments .78
........................
Brights, Headlights .76
...
Accessories and Modif ications .188
ACCESSORY (Ignition Key
.......................................
Position) .82
............
Accessory Power Sockets .118
....................
Additives, Engine Oil .249
........
Adjusting the Steering wheel .79
...........................
Advanced Airbags .25
.....................................
Airbag (SRS) .9
..............
Air Conditioning System .124
.........................................
Usage .128
...............
Air Outlets (Vents) .126,131
.......................
Air Pressure, Tires .268
......................................
Antif reeze .251
Anti-lock Brakes (ABS)
...............................
Indicator .63,213
...................................
Operation .213
..............
Anti-thef t, Audio System .166
.
Anti-thef t Steering Column Lock .82
........................................
Armrests .102
................
Audio System .135,144,150
.....
Auto Door Locking/Unlocking .84
Automatic Heated Wiper
......................................
Zone .76,129
...
Automatic Seat Belt Tensioners .19 .............
Automatic Speed Control .169
..............
Automatic Transmission .201
..........................
Capacity, Fluid .304
...............
Checking Fluid Level .253
.......................................
Shif ting .201
Shif t Lever Position
...............................
Indicators .201
................
Shif t Lever Positions .202
....................
Shif t Lock Release .205
......................
Auxiliary Input Jack .165
Index
A
B
INDEX
I
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2008 Ridgeline