2008 TOYOTA 4RUNNER cooling

438
To ensure excellent lubrication perfor-
mance for your engine, Toyota Genuine
Motor Oil" is available, which has been
specifically tested and approved for all
Toyota engines.
Please contact your Toyota dealer for fur-
ther details about Toyota Genuine Motor
Oil".Look at the see−through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the F" and L" lines on the reservoir.
If the level is low, add the coolant. (For
the coolant type, see Coolant type
selection" described below.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the L" line, add
coolant. Bring the level up to the F" line.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Coolant type selection
Use of improper coolants may damage
your engine cooling system.
Only use Toyota Super Long Life Coolant"
or similar high quality ethylene glycol
based non−silicate, non−amine, non−nitrite,
and non−borate coolant with long−life
hybrid organic acid technology. (Coolant
with long−life hybrid organic acid
technology is a combination of low
phosphates and organic acids.)
For the U.S.A.Toyota Super Long Life
Coolant" is a mixture of 50% coolant and
50% deionized water. This coolant pro-
vides protection down to about −35
C
(−31 F).
For CanadaToyota Super Long Life
Coolant" is a mixture of 55% coolant and
45% deionized water. This coolant pro-
vides protection down to about −42 C
(−44 F).
NOTICE
Do not use plain water alone.
Checking the engine coolant
level

439
Toyota recommends Toyota Super Long
Life Coolant", which has been tested to
ensure that it will not cause corrosion nor
result in malfunction of your engine
coolant system with proper usage. Toyota
Super Long Life Coolant" is formulated
with long−life hybrid organic acid
technology and has been specifically
designed to avoid engine cooling system
malfunction on Toyota vehicles.
Please contact your Toyota dealer for
further details.If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, take your vehicle to a Toyota dealer.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser when the engine is hot.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
CY72025
To check the fluid level, simply look at
the see−through reservoir. The level
should be between the MAX" and
MIN" lines on the reservoir.
It is normal for the brake fluid level to go
down slightly as the brake pads wear or
when the fluid level in the accumulator is
high.
If the reservoir needs frequent ref
illing, it
may indicate a serious mechanical prob-
lem.
If the level is low, add SAE J1703 or
FMVSS No.116 DOT 3 brake fluid to the
brake reservoir.
Checking the radiator and
condenser Checking brake fluid

448
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace a damaged wheel,
the tire may slip off the wheel or cause
loss of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis. Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
CAUTION
Observe the following instructions.
Otherwise, an accident may occur re-
sulting in death or serious injuries.
Do not use wheels other than the
manufacturer ’s recommended size,
as this may cause dangerous han-
dling characteristics resulting in
loss of control.
Four−wheel drive models:
Do not use wheels of different
brands, sizes and types, as this
may cause dangerous handling
characteristics resulting in loss of
control.
When installing aluminum w
heels,
check that the wheel nuts are tight
after driving your vehicle the first 1600
km (1000 miles).
If you have rotated, repaired or
changed your tires, check that the
wheel nuts are still tight after driving
1600 km (1000 miles).
When using tire chains, be careful not
to damage the aluminum wheels.
Use only Toyota wheel nuts and
wrench designed for your aluminum
wheels.
When balancing your wheels, use only
Toyota balance weights or equivalent
and a plastic or rubber hammer.
As with any wheel, periodically check
your aluminum wheels for damage. If
damaged, replace immediately.
Aluminum wheel precautions

464
Toyota Genuine Motor Oil" is used in
your Toyota vehicle. Use Toyota approved
Toyota Genuine Motor Oil" or equivalent
to satisfy the following grade and
viscosity.
Oil grade:ILSAC multigrade engine oil
Recommended oil viscosity: SAE 5W−30
OIL008
Outside temperature
Please contact your Toyota dealer for fur-
ther details. COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
4.0 L V6 (1GR−FE) engine
9.8(10.4,8.6)
4.7 L V8 (2UZ−FE) engine 12.3(13,0,10.8)
Coolant type: Toyota Super Long Life Coolant" is
used in your Toyota vehicle at factory
fill. In order to avoid technical problems,
only use Toyota Super Long Life
Coolant" or similar high quality ethylene
glycol based non−silicate, non−amine,
non−nitrite, and non−borate coolant with
long−life hybrid organic acid technology.
(Coolant with long−life hybrid organic
acid technology is a combination of low
phosphates and organic acids.)
Do not use plain water alone.
Please contact your Toyota dealer for
further details. BATTERY
Open voltage
∗ at 20
C (68 F):
12.612.8 V Fully charged
12.212.4 V Half charged
11.812.0 V Discharged
∗: Voltage that is checked 20 minutes af- ter the key is removed with all the
lights turned off
Charging rates: 5 A max.

477
Cleaning the interior417
. . . . . . . . . . . . . . . . . .
Clock 305
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coin holder 326
. . . . . . . . . . . . . . . . . . . . . . . . . .
Cold weather
Operation 375
. . . . . . . . . . . . . . . . . . . . . . . . .
Compact disc changer 208
. . . . . . . . . . . . . . . .
Compact disc changer controller 208 . . . . . . .
Compact disc player 208
. . . . . . . . . . . . . . . . . .
Compass 307
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Condenser
Checking the condenser 439
. . . . . . . . . . . .
Console box
Rear 324
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls, Instrument panel 2,6
. . . . . . . . . . . .
Cooling system
Coolant level 438
. . . . . . . . . . . . . . . . . . . . . .
Engine overheating 394
. . . . . . . . . . . . . . . . .
Radiator and reservoir 438
. . . . . . . . . . . . . .
Radiator cap 394
. . . . . . . . . . . . . . . . . . . . . . .
Winter driving tips 375
. . . . . . . . . . . . . . . . . .
Corrosion prevention 414
. . . . . . . . . . . . . . . . .
Cranking hold function 370
. . . . . . . . . . . . . . . .
Cruise control 203
. . . . . . . . . . . . . . . . . . . . . . .
Cruise information display 306
. . . . . . . . . . . . .
Cup holder
Front 327
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 328,330
. . . . . . . . . . . . . . . . . . . . . . . . . . D
Defogger
Back window 142 . . . . . . . . . . . . . . . . . . . . . .
Outside rear view mirror 142 . . . . . . . . . . . .
Differential, Limited slip 349 . . . . . . . . . . . . . . .
Dimmer switch, Headlight 130,132 . . . . . . . . .
Dinghy towing 376 . . . . . . . . . . . . . . . . . . . . . . .
Directional signals 130,132 . . . . . . . . . . . . . . .
Do−it−yourself maintenance
Parts and tools 432 . . . . . . . . . . . . . . . . . . . . .
Service precautions 430 . . . . . . . . . . . . . . . .
Does your vehicle need repairing? 425 . . . . . . . . . . . . . . . . . . . . . . . . .
Doors
Side doors 22 . . . . . . . . . . . . . . . . . . . . . . . . .
Double deck 333 . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 186 . . . . . . . . .
Driver ’s seat belt reminder buzzer 149 . . . . . .
Driver ’s seat belt reminder light 149 . . . . . . . .
Driving
Automatic transmission 163 . . . . . . . . . . . . .
Driving tips 370 . . . . . . . . . . . . . . . . . . . . . . . .
Driving in the rain 373 . . . . . . . . . . . . . . . . . . . .
Driving position memory system 48 . . . . . . . .
Driving tips
Driving in the rain 373 . . . . . . . . . . . . . . . . . .
Driving tips in various conditions 371 . . . . .
Driving with an automatic transmission 163 . . . . . . . . . . . . . . . . . . . . .
Economical driving 386 . . . . . . . . . . . . . . . . .
Good driving practice 163 . . . . . . . . . . . . . . .
Winter driving tips 375 . . . . . . . . . . . . . . . . . .
During
Break−in 339 . . . . . . . . . . . . . . . . . . . . . . . . . .
DVD player 240 . . . . . . . . . . . . . . . . . . . . . . . . . .
E
Economical driving
Saving money on both fuel and repairs 386 . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric moon roof 39 . . . . . . . . . . . . . . . . . . . . .
Electrical system
Battery 450,451 . . . . . . . . . . . . . . . . . . . . . . . .
Fuse locations 430 . . . . . . . . . . . . . . . . . . . . .
Fuses 452 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency flasher switch 135 . . . . . . . . . . . . .
Emergency, In case of
Blown fuse 452 . . . . . . . . . . . . . . . . . . . . . . . .
Emergency flasher switch 135 . . . . . . . . . . .
Flat tire 395 . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you cannot increase engine speed 394 . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you cannot shift automatic transmission selector lever 410 . . . . . . . .
If you lose your keys 411 . . . . . . . . . . . . . . . .
If you lose your wireless remote control transmitter 411 . . . . . . . . . . . . . . . .
If your engine stalls while driving 393 . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle becomes stuck 405 . . . . . . .
If your vehicle needs to be towed 405 . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle will not start 390 . . . . . . . . . .
Jump starting 391 . . . . . . . . . . . . . . . . . . . . . .
Overheating 394 . . . . . . . . . . . . . . . . . . . . . . .
Towing 405 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emissions Inspection and
Maintenance (I/M) programs 426 . . . . . . . . .