2006 TOYOTA 4RUNNER engine oil

’06 4Runner_U (L/O 0508)
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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 seethrough 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 Canada—“Toyota 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

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Towing capacity (trailer weight + cargo
weight), kg (lb.):
For weight carrying hitch 2268 (5000)
Also for weight distributing hitch
(4.7 L V8 [2UZ −FE] engine only)
Tw o −wheel drive models
3311 (7300)
Four −wheel drive models
3175 (7000)
Dimensions and weights
Overall width mm (in.)
2790 (109.8)
Overall height
∗
1mm (in.)
1575 (62.0)
Wheelbase mm (in.)
Front tread mm (in.) 1575 (62.0)
Rear tread mm (in.)
431 (950)
∗7
476 (1050)∗8
∗1: Unladen vehicle∗2:Two −wheel drive models∗
3: Four −wheel drive models∗
4: With roof rails∗5: With rear spoiler∗6: With rear height control air suspension∗7: With 5 occupants∗8: With 7 occupantsOverall length mm (in.)
Vehicle capacity weight (occupants + luggage)
kg (lb.)4805 (189.2)
1910 (75.2)
1820 (71.7)
∗
2or3,4
1800 (70.9)∗2, 3, 5
1755 (69.1)∗2, 3
1805 (71.1)∗2 or 3,4,6
1785 (70.3)∗2 or 3,5,6
1740 (68.5)∗2or3,6
91 (200)∗7
0(0)∗8Luggage compartment load capacity kg (lb.)

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Model:
1GR −FE and 2UZ −FE
Type: 1GR −FE engine
6 cylinder V type, 4 cycle, gasoline
2UZ− FE engine
8 cylinder V type, 4 cycle, gasoline
Bore and stroke, mm (in.): 1GR −FE engine
94.0 95.0 (3.70 3.74)
2UZ− FE engine
94.0 84.0 (3.70 3.31)
Displacement, cm
3 (cu. in.):
1GR −FE engine 3956 (241.4)
2UZ− FE engine 4664 (284.5) Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher.
For improved vehicle performance, use
premium unleaded gasoline with an Oc-
tane Rating of 91 (Research Octane
Number 96) or higher.
Fuel tank capacity, L (gal., Imp. gal.): 87 (23.0, 19.1) ENGINE
Valve clearance (engine cold), mm (in.):
4.0 L V6 (1GR −FE) engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.29—0.39 (0.011—0.015)
4.7 L V8 (2UZ −FE) engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: 4.0 L V6 (1GR −FE) engine
DENSO K20HR −U11
NGK LFR6C11
4.7 L V8 (2UZ −FE) engine
DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm (in.): 1.1 (0.043)
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp.
qt.): 4.0 L V6 (1GR −FE) engine
With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3)
4.7 L V8 (2UZ −FE) engine
With filter 6.2 (6.5, 5.5)
Without filter 5.7 (6.0, 5.0)
Engine FuelService specifications

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“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
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):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 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.

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Publication No. OM35852U
Part No. 01999-35852
Printed in Japan 01−0508 −00
4
Quick index
 If a service reminder indicator or warning buzzer comes on 147 . . . . . . . .
 If your vehicle will not start 374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 378 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 379 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 389 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during break −in period 329 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
Gas station information
Fuel type:
UNLEADED gasoline, Octane Rating 87 (Research Octane Number 91) or
higher.
For improved vehicle performance, use premium unleaded gasoline with an
Octane Rating of 91 (Research Octane Number 96) or higher.
See page 329 for detailed information.
Fuel tank capacity:
87 L (23.0 gal., 19.1 Imp. gal.)
Engine oil:
ILSAC multigrade engine oil is recommended.
See page 421 for detailed information.
Tire information: See pages 425 through 432.
Tire inflation pressure: See page 451.
U1

’06 4Runner_U (L/O 0508)
Where to obtain the
Repair Manual
The repair manual for 4RUNNER may be pur-
chased from any Toyota dealer or the Material
Distribution Center. To purchase the repair
manual, please contact your Toyota dealer or call
the Material Distribution Center tollfree at
18006222033.
Maintenance procedures for the engine,
chassis, body, electric al system, and more,
are clearly explained and illustrated.
Periodic maintenance and tuneup
Periodic maintenance and tuneup helps to pre-
vent small problems from growing into larger ones lat-
er on. The repair manual outlines exactly what main-
tenance is required and clearly explains how to do the
work yourself stepbystep.
Areas covered include such things as spark plug re-
placement, valve clearance adjustment and engine oil
and filter replacement.