1998 TOYOTA 4RUNNER oil viscosity

4RUNNER (1998)
Keep the back door and back
window closed while driving. An
open or unsealed back door and
back window, may cause ex-
haust gases to be drawn into
the vehicle. If you must drive
with the trunk lid open to ac-
commodate a large object, close
the windows, open all the
instrument panel vents and
have the heating or cooling sys-
tem deliver fresh air into the
vehicle by turning the fan to
high speed with the air intake
control set at the outside air
position.
To allow proper operation of
your vehicle's ventilation sys-
tem, keep the inlet grilles in
front of the windshield clear of
snow, leaves, or other obstruc-
tions.
If you smell exhaust fumes in
the vehicle, drive with the win-
dows open and the back door
and back window closed. Have
the cause immediately located
and corrected.FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions
of lubricating and cooling the inside of
the engine, and plays a major role in
maintaining the engine in proper work-
ing order.
ENGINE OIL CONSUMPTION
It is normal that an engine should
consume some engine oil during
normal engine operation. The
causes of oil consumption in a nor-
mal engine are as follows.
Oil is used to lubricate pistons,
piston rings and cylinders. A thin
film of oil is left on the cylinder
wall when a piston moves down-
wards in the cylinder. High nega-
tive pressure generated when the
vehicle is decelerating sucks some
of this oil into the combustion
chamber. This oil as well as some
part of the oil film left on the cylin-
der wall is burned by the high tem-
perature combustion gases during
the combustion process.
Oil is also used to lubricate the
stems of the intake valves. Some
of this oil is sucked into the com-
bustion chamber together with the
intake air and is burned along with
the fuel. High temperature exhaust
gases also burn the oil used to
lubricate the exhaust valve stems.
The amount of engine oil consumed
depends on the viscosity of the oil,
the quality of the oil and the condi-
tions the vehicle is driven under.
More oil is consumed by high- speed
driving and frequent acceleration and
deceleration.
A new engine consumes more oil,
since its pistons, piston rings and cyl-
inder walls have not become condi-
tioned.
When judging the amount of oil
consumption, note that the oil may
become diluted and make it difficult
to judge the true level accurately.
As an example, if a vehicle is used
for repeated short trips, and consumes
a normal amount of oil, the dipstick
may not show any drop in the oil
level at all, even after 1000 km (600
miles) or more. This is because the
oil is gradually becoming diluted with
fuel or moisture, making it appear that
the oil level has not changed.
Facts about engine oil
consumption

4RUNNER (1998)
The driver and all passengers
should fasten their seat belts
whenever the vehicle is moving.
NOTICE
If driving through water, such
as when crossing shallowstreams, first check the depth of the water and the bottom of
the river bed for firmness. Driveslowly and avoid deep water.
Take all necessary safety mea-
sures to ensure that water dam-age to the engine or other com- ponents does not occur.
Water entering the engine airintake will cause severe engine
damage.
Water can wash the grease fromwheel bearings, causing rustingand premature failure, and mayalso enter the differentials,
transmission and transfer case,reducing the gear oil's lubrica-ting qualities.
Sand and mud that has accum-
lated in brake drums andaround brake discs may affectbraking efficiency and may dam-
age brake system components.
Always perform a maintenanceinspection after each day of
off- road driving that has takenyou through rough terrain,sand, mud, or water. For sche-
duled maintenance information,refer to the separate ºOwner's Manual Supplement/Maintenance
Scheduleº.
Winter driving tips
Make sure you have ethylene- glycol
antifreeze in the radiator.
NOTICE
Do not use alcohol type anti-freeze.
Check the condition of the battery
and cables.
Cold temperatures reduce the capacity
of any battery, so it must be in top
shape to provide enough power for
winter starting. Chapter 7- 3 tells you
how to visually inspect the battery.
Your Toyota dealer and most service
stations will be pleased to check the
level of charge.
Make sure the engine oil viscosity
is suitable for the cold weather.
See Chapter 7- 2 for recommended
viscosity. Leaving a heavy summer oil
in your vehicle during winter months
may cause harder starting. If you are
not sure about which oil to use, call
your Toyota dealerÐhe will be pleased
to help.
Keep the door locks from freezing.
Squirt lock de- icer or glycerine into
the locks to keep them from freezing.
To open a frozen lock, try heating the
key before inserting it.

4RUNNER (1998)
Parts and tools
Here is a list of parts and tools you
will need on performing do- it- yourself
maintenance. Remember all Toyota
parts are designed in metric sizes, so
your tools must be metric.
Checking the engine oil level
Parts (if level is low): Engine oil API grade SH, ºEnergy-
Conserving IIº or SJ, ºEnergy-
Conservingº multigrade or ILSAC
multigrade having viscosity proper
for your climate
Tools: Rag or paper towel
Funnel (only for adding oil)
Checking the engine coolant level
Parts (if level is low): Ethylene- glycol antifreeze
Demineralized or distilled water
Tools: Funnel (only for adding coolant)
Checking brake fluid
Parts (if level is low): SAE J1703 or FMVSS No. 116
DOT 3 brake fluid
Tools: Rag or paper towel
Funnel (only for adding fluid) Checking power steering fluid
Parts (if level is low):
Automatic transmission fluid DEXRON II or III
Tools: Rag or paper towel
Funnel (only for adding fluid)
Checking battery condition
Tools: Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
Checking and replacing fuses
Parts (if replacement is necessary): Fuse with same amperage rating
as original
Tools: Conventional wrench (for instrument
lower panel nut)
Adding washer fluid
Parts: Water
Washer fluid containing antifreeze
(for winter use)
Tools: Funnel Replacing light bulbs
Parts:
Bulb with same number and watt-
age rating as original (See charts
in ºReplacing light bulbsº in Chap-
ter 7- 3.)
Tools: Screwdriver

4RUNNER (1998)
ENGINE OIL SELECTION Use API grade SH, ºEnergy- Conserv-
ing IIº or SJ, Energy- conservingº
multigrade engine oil or ILSAC multi-
grade engine oil.Recommended viscosity (SAE):
SAE 5W- 30 is the best choice for
your vehicle, for good fuel economy
and good starting in cold weather.
If you use SAE 10W- 30 engine oil
in extremely low temperatures, the
engine may become difficult to
start, so SAE 5W- 30 engine oil is
recommended.

4RUNNER (1998)
The top portion of the label shows the
oil quality by API (American Petroleum
Institute) designations such as SJ.
The center portion of the label shows
the SAE
viscosity grade such as SAE 5W- 30.
ºEnergy- Conservingº shown in the
lower portion, indicates that the oil
has fuel- saving capab ilities.
The ILSAC (International Lubricant
Standardization and Approval Commit-
tee) Certification Mark is displayed on
the front of the container. Look at the see- through coolant
reservoir when the engine is cold.
The coolant level is satisfactory if
it is between the ºF (Full)º and ºL
(Low)º lines on the reservoir. If the
level is low, add ethylene- glycol
type coolant.
The coolant level in the reservoir will
vary with engine temperature. Howev-
er, if the level is on or below the ºLº
line, add coolant. Bring the level up
to the ºFº line.
Use only ethylene- glycol type coolant.
See information in the next column.
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 engine is hot.
Coolant type selection
Your coolant must contain ethylene-
glycol antifreeze. In addition to pre-
venting freezing and subsequent dam-
age to the engine, this will also
prevent corrosion. Further supplemen-
tal inhibitors or additives are neither
needed nor recommended.
Read the antifreeze container for in-
formation on freeze protection. Follow
the manufacturer 's directions for how
much to mix with water. The total ca-
pacity of the cooling system is given
in Part 8. We recommend 50% solu-
tion be used for your Toyota, or a
sufficient quantity to provide protection
to about -35
C (- 31 F).
NOTICE
Do not use alcohol type antifreeze
or plain water alone.
Checking the engine coolan
level

4RUNNER (1998)
Drive belt tension measured with Bor-
roughs drive belt tension gauge No.
BT- 33- 73F (used belt), Ibf:
3RZ- FE engineGenerator belt
11 5 20
Air conditioning compressor belt
100 20
Power steering pump belt
100 +25
-15
5VZ- FE engine Generator belt
100 20
Air conditioning compressor belt
100 20
Power steering pump belt
100 +20
-15
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp. qt.): 3RZ- FE engineWith filter 5.4 (5.7, 4.8)
Without filter 4.7 (5.0, 4.1)
5VZ- FE engine With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3) Oil grade:
API grade SH, ºEnergy- Conserving IIº
or SJ, ºEnergy- Conservingº multi-
grade engine oil or ILSAC multigrade
engine oil is recommended.
Recommended oil viscosity (SAE):

4RUNNER (1998)
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
3RZ- FE engineWith rear heater 11.0 (11.6, 9.7)
Without rear heater
10.0 (10.6, 8.8)
5VZ- FE engine With rear heater
9.0 (9.5, 7.9)
Without rear heater
8.0 (8.5, 7.0) Coolant type:
With ethylene- glycol antifreeze
(Do not use alcohol type.)
BATTERY
Open voltage *
at 20 C (68 F):
12.6Ð12.8 V Fully charged
12.2Ð12.4 V Half charged
11.8 Ð12.0 V Discharged
* : Voltage that is checked 20 minutes
after
the key is removed with all the lights
turned off
Charging rates:
5 A max.
CLUTCH
Pedal freeplay, mm (in.): 5Ð15 (0.2Ð0.6)
Fluid type: SAE J1703 or FMVSS No. 116 DOT
3 MANUAL TRANSMISSION
Oil capacity, L (qt., Imp. qt.):
3RZ- FE engine
Two- wheel drive models 2.6 (2.7, 2.3)
Four- wheel drive models
2.5 (2.6, 2.2)
5VZ- FE engine 2.2 (2.3, 1.9)
Oil type: Gear oil API GL- 4 or GL- 5
Recommended oil viscosity: SAE 75W- 90
AUTOMATIC TRANSMISSION
Fluid capacity (drain and ref ill),
L (qt., Imp. qt.): Two- wheel drive models Up to 1.6 (1.7, 1.4)
Four- wheel drive models Up to 2.0 (2.1, 1.8)

4RUNNER (1998)
Fluid type:
Automatic transmission fluid D- II or DEXRONIII (DEXRON II) TRANSFER
Oil capacity, L (qt., Imp. qt.):
1.0 (1.1, 0.9)
Oil type: Gear oil API GL- 4 or GL- 5
Recommended oil viscosity: SAE 75W- 90
DIFFERENTIAL
Oil capacity, L (qt., Imp. qt.): Two- wheel drive models 2.75 (2.9, 2.4)
Four- wheel drive models FrontA.D.D.1.15 (1.2, 1.0)
Except A.D.D. 1.1 (1.2, 1.0)
Rear
With rear differential lock system2.75 (2.9, 2.4)
Without rear differential lock sys-
tem 2.45 (2.6, 2.2) Oil type:
Hypoid gear oil API GL- 5
Recommended oil viscosity:
FrontA.D.D.
SAE 75W- 90
Except A.D.D. Above -18 C (0 F)
SAE 90
Below -18 C (0 F)
SAE 80W or 80W- 90
Rear Above -18 C (0 F)
SAE 90
Below -18 C (0 F)
SAE 80W or 80W- 90
CHASSIS LUBRICATION
Propeller shafts: SpidersLithium base chassis grease,
NLGI No.2
Slide yoke and double cardan joint Molybdenum- disulfide lithium base
chassis grease, NLGI No.2