oil viscosity TOYOTA COROLLA 1998 Owners Manual

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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 main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal 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 pis-
ton moves downwards in the cylinder.
High negative 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 cylinder wall is burned
by the high temperature 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 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 express way, 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.
Facts about engine oil
consumption
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CAUTION
Before driving off, make sure that
the parking brake is fully released
and the parking brake reminder
light is off.
Do not leave your vehicle unat-
tended while the engine is running.
Do not rest your foot on the brake
pedal while driving. It can cause
dangerous overheating, needless
wear, and poor fuel economy.
To drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat and
not work properly.
Be careful when accelerating, up-
shifting, downshifting or braking on
a slippery surface. Sudden accelera-
tion or engine braking could cause
the vehicle to spin or skid.
Do not drive in excess of the speed
limit. Even if the legal speed limit
permits it, do not drive over 140
km/h (85 mph) unless your vehicle
has high−speed capability tires.
Driving over 140 km/h (85 mph) may
result in tire failure, loss of control
and possible injury. Be sure to con-
sult a tire dealer to determine
whether the tires on your vehicle
are high−speed capability tires or
not before driving at such speeds.
Do not continue normal driving
when the brakes are wet. If they are
wet, your vehicle will require a
longer stopping distance, and it
may pull to one side when the
brakes are applied. Also, the park-
ing brake will not hold the vehicle
securely.
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 deal-
er—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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Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
Add only demineralized or distilled
water to fill the radiator. And if you
spill some of the coolant, be sure
to wash off with water to prevent it
from damaging the parts or paint.
Do not allow dirt or anything else
to fall through the spark plugholes.
Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
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)
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Engine oil selection
Use API grade 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.
API service symbol
ILSAC certification mark
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 ca-
pabilities.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container.
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Fuel
Fuel type:
Unleaded gasoline, Octane Rating 87 (Re-
search Octane Number 91) or higher
Fuel tank capacity, L (gal., Imp. gal.):
50 (13.2, 11.0)
Service specifications
ENGINE
Valve clearance (engine cold), mm (in.):
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type:
DENSO K16TR11
NGK BKR5EKB−11
Spark plug gap, mm(in.):
1.1 (0.043)ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp.
qt.):
With filter 3.7 (3.9, 3.3)
Without filter 3.5 (3.7, 3.1)
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):
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COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
Manual transmission
5.8 (6.1, 5.1)
Automatic transmission
5.7 (6.0, 5.0)
Coolant type:
With ethylene−glycol antifreeze
(Do not use alcohol type.)
BATTERY
Open voltage
∗ at 20C (68F):
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 3MANUAL TRANSAXLE
Oil capacity, L (qt., Imp. qt.):
1.9 (2.0, 1.7)
Oil type:
Gear oil API GL−4 or GL−5
Recommended oil viscosity:
SAE 75W−90
AUTOMATIC TRANSAXLE
Automatic transmission
Fluid capacity (drain and refill),
L (qt., Imp. qt.):
Four−speed type
Up to 3.1 (3.3, 2.7)
Three−speed type
2.5 (2.6,2.2)
Fluid type:
Automatic transmission fluid D−ll or
DEXRONIII (DEXRONII)
Differential (three−speed type only)
Fluid capacity L (qt., Imp. qt.):
1.4 (1.5, 1.2)
Fluid type:
Automatic transmission fluid D−II or
DEXRONIII (DEXRONII)BRAKES
Minimum pedal clearance when depressed
with the pressure of 490 N (50 kgf, 110 lbf)
with the engine running, mm (in.):
Vehicles with anti−lock brake system
90 (3.5)
Vehicles without anti−lock brake system
85 (3.3)
Pedal freeplay, mm (in.):
1—6 (0.04—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):
4—7 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 DEXRONII
or III
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