1998 TOYOTA T100 oil viscosity

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Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high-speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
When judging the amount of oil con-
sumption, 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 nor-
mal 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. The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
IMPORTANCE OF ENGINE OIL LEVEL CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see ”Checking the engine oil level” in
Chapter 7
−2.
Your engine is fitted with twin ground
electrode spark plugs.
NOTICE
Use only twin ground electrode spark
plugs for your engine performance.
Twin ground electrode spark
plugs (5VZ −FE engine)

T100(U)133
NOTICE
If driving through water, such as
when crossing shallow streams,
first check the depth of the water
and the bottom of the river bed for
firmness. Drive slowly and avoid
deep water.
Take all necessary safety measures
to ensure that
damage to the engine or other com-
ponents does not occur.
Water entering the engine air intake
will cause severe engine damage.
Water can wash the grease from
wheel bearings, causing rusting and
premature failure, and may also en-
ter the differentials, transmission
and transfer case, reducing the gear
oil’s lubricating qualities.
Sand and mud that has accumulated
in brake drums and around brake
discs may affect braking efficiency
and may damage brake system com-
ponents.
Always perform a maintenance in-
spection after each day of off-road
driving that has taken you through
rough terrain, sand, mud, or water.
For scheduled maintenance informa-
tion, refer to the separate ”Owner’s
Manual Supplement/Maintenance
Schedule”.
Winter driving tips
Make sure you have ethylene-glycol an-
tifreeze in the radiator.
NOTICE
Do not use alcohol type antifreeze.
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 start-
ing. 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 viscos-
ity. 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 dealer–
he 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.

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176
Be careful not to scratch the glass
surface with the wiper frame.
When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
Parts and tools
Here is a list of parts and tools you will
need on performing do-it-yourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
Checking the engine oil level
Parts (if level is low):
Engine oil API grade SH, ”Energy-Con-
serving II” or SJ, “Energy −Conserving”
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

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180
NOTICE
Avoid overfilling, or the engine
could be damaged.
Check the oil level on the dipstick
once again after adding the oil.
ENGINE OIL SELECTION
Use API SH, ”Energy-Conserving II” or
SJ, ”Energy −Conserving” multigrade engine
oil or ILSAC multigrade 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.
Oil identification marks
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located any-
where on the outside of the container.
The top portion of the label shows the oil
quality by API (American Petroleum Insti-
tute) designations such as SJ. The center
portion of the label shows the SAE viscos-
ity grade such as SAE 5W-30. ”Energy-
Conserving” shown in the lower portion,
indicates that the oil has fuel-saving capa-
bilities.

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202
ENGINE LUBRICATION
Oil capacity (drain and ref
ill),
L (qt., Imp. qt.):
Two-wheel drive models 3RZ −FE engine
With filter 5.5 (5.8, 4.8)
Without filter 4.8 (5.1, 4.2)
5VZ −FE engine
With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3)
Four-wheel drive models With filter 4.7 (5.0, 4.1)
Without filter 4.4 (4.7, 3.9)
Oil grade: API grade SH, ”Energy-Conserving II”
or SJ, ”Energy-Conserving” multigrade
engine oil or ILSAC multigrade engine
oil is recommended.
Recommended oil viscosity (SAE):
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.): Two-wheel drive models
With manual transmission 3RZ −FE engine
8.7 (9.2, 7.7)
5VZ −FE engine
10.0 (10.6, 8.8)
With automatic transmission
3RZ −FE engine
9.0 ( 9.5, 7.9)
5VZ −FE engine
9.9 (10.5, 8.7)
Four-wheel drive models With manual transmission
10.0 (10.6, 8.8)
With automatic transmission 9.9 (10.5, 8.7)
Coolant type: With ethylene-glycol antifreeze
(Do not use alcohol type.)
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 after
the key is removed with all the lights
turned off
Charging rates: 5 A max. CLUTCH
Pedal freeplay, mm (in.):
5—15 (0.2—0.6)
Fluid type:
SAE J1703 or FMVSS No.116 DOT 3
MANUAL TRANSMISSION
Oil capacity, L (qt., Imp. qt.): 3RZ −FE engine
2.6 (2.7, 2.3)
5VZ −FE engine
Two-wheel drive models
2.6 (2.7, 2.3)
Four-wheel drive models 2.2 (2.3, 1.9)

T100(U)203
Oil type:
Gear oil API GL −4 or GL −5
Recommended oil viscosity:
SAE 75W −90
AUTOMATIC TRANSMISSION
Fluid capacity (drain and refill),
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)
Fluid type:
Automatic transmission fluid D−II or DEXRON
III (
DEXRON
II)
TRANSFER
Oil capacity, L (qt., Imp. qt.): 1.1 (1.2, 1.0)
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 Front 1.9 (2.0, 1.7)
Rear 2.95 (3.1, 2.6) Oil type:
Hypoid gear oil API GL −5
Recommended oil viscosity: Front SAE 75W −90
Rear
Above −18 °C (0 °F)
SAE 90
Below −18 °C (0 °F)
SAE 80W or 80W −90
CHASSIS LUBRICATION
Wheel bearings: Lithium base wheel bearing grease,
NLGI No.2
Front drive shaft thrust bushings: Synthetic oil and lithium soap base
chassis grease, NLGI No.1
Propeller shafts: Spiders and slide yokes Lithium base chassis grease,
NLGI No.2
Double cardan joint Molybdenum-disulfide lithium base
chassis grease, NLGI No.2
BRAKES
Minimum pedal clearance when depressed
with the pressure of 490 N (50 kgf. 110
lbf) with the engine running, mm (in.): Two-wheel drive models
1-ton models 78 (3.1)
1/2-ton models 73 (2.9)
Four-wheel drive models 1-ton models 70 (2.8)
1/2-ton models 73 (2.9)
Pedal freeplay, mm (in.): 3—6 (0.12—0.24)
Pad wear limit, mm (in.): 1.0 (0.04)
Lining wear limit, mm (in.):
1.0 (0.04)
Parking brake adjustment when pulled with
the force of 196 N (20 kgf, 44 lbf):
11—17 clicks
Fluid type: SAE J1703 or FMVSS No.116 DOT 3
STEERING
Wheel freeplay: Less than 30 mm (1.2 in.)
Power steering fluid type: Automatic transmission fluid DEXRON
II or III