checking oil TOYOTA CELICA 1996 Owners Manual

107
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of lu-
bricating and cooling the inside of the en-
gine, and plays a major role in maintaining
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 piston
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 com-
bustion 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 cham-
ber 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
depends 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 be-
come diluted and make it difficult to
judge the true level accurately.
As an example, if a vehicle is used for re-
peated 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 the 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 as high speeds. IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in proper
vehicle maintenance is to keep the engine
oil at the optimum level so that oil function
will
not be impaired. Therefore, it is essen-
tial 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 insufficientoil.
For detailed information on the oil level
check, see Checking the engine oil levelº
in Chapter 7-2.
Facts about engine oil
consumption
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149
Tire surface and wheel nuts
Check the tires carefully for cuts, damage
or excessive wear. See Chapter 7-2 for
additional information. When checking
the tires, make sure no nuts are missing,
and check the nuts for looseness. T ighten
them if necessary.
Tire rotation
Rotate the tires every 12000 km (7500
miles). See Chapter 7-2 for additional in-
formation.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has been
parked for a while. If you smell fuel fumes
or notice any leak, have the cause found
and corrected immediately.
Doors and engine hood
Check that all doors including trunk lid or
back door operate smoothly and all
latches lock securely. Make sure the en-
gine hood secondary latch secures the
hood from opening when the primary latch
is released.
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing peri-
odic services, cleaning the vehicle,
etc. Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and
warn-
ing buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise.
Seats
Check that all front seat controls such as
seat adjusters, seatback recliner, etc. op-
erate smoothly and that all latches lock
securely in any position. Check that the
head restraints move up and down
smoothly and that the locks hold securely
in any latched postiion. For folding-down
rear seatbacks, check that the latches
lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged. Accelerator pedal
Check
the pedal for smooth operation and
uneven pedal effort or catching.
Clutch pedal
Check the pedal for smooth operation.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied.
Parking brake
Check that the lever has the proper travel
and that, on a safe incline, your vehicle is
held securely with only the parking brake
applied.
Automatic transmission Parkº mech-
anism
Check the lock release button of the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check that your ve-
hicle is held securely with the selector
lever in Pº position and all brakes re-
leased.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time , e.g. each time when
refueling.
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158
NOTICE
Remember that battery and igni-tion cables carry high currents or
voltages. Be careful of accidental-ly causing a short circuit.
Add only demineralized or dis-tilled water to fill the radiator. Andif you spill some of the coolant, besure to wash it off with water to
prevent it from damaging theparts or paint.
Do not allow dirt or anything elseto fall through the spark plugholes.
Do not pry the outer electrode of aspark plug against the center elec-
trode.
Use only spark plugs of the speci- fied type. Using other types willcause engine damage, loss of per-
formance or radio noise.
Do not reuse platinum-tipped
spark plugs by cleaning or regap-ping.
Do not overfill automatic trans-
mission fluid, or the transmissioncould be damaged.
Do not drive with the air cleaner fil-ter removed, or excessive engine
wear could result. Also backfiringcould cause a fire in the enginecompartment.
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.
Here is a list of parts and tools you will
need on performing do-it-yourself main-
tenance. 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 SH, Energy-Conserv-
ing IIº multigrade or ILSAC multigrade
having viscosity proper for your cli-
mate
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)
Parts and tools
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Part 7Checking the engine oil level161
DO-IT-YOURSELF
MAINTENANCEÐ
Chapter 7-2
Engine and Chassis

Checking the engine oil level

Checking the engine coolant
level

Checking brake fluid

Checking power steering fluid

Checking tire pressure

Checking and replacing tires

Rotating tires

Installing snow tires and chains

Replacing wheels

Aluminum wheel precautions
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
1. To get a true reading, the vehicle
should be on a level spot. After turning off
the engine, wait a few minutes for the oil
to drain back into the bottom of the en-
gine.
2. Pull out the dipstick, and wipe it clean
with a rag.
3. Reinsert the dipstick 'push it in as far
as it will go, or the reading will not be cor-
rect.
4. Pull the dipstick out and look at the oil
level on the end.
CAUTION
Be careful not to touch the hot ex-
haust manifold.!
If the oil level is below or only slightly
above the low level line, add engine oil
of the same type as already in the en-
gine.
Remove the oil filter cap and add engine
oil in small quantities at a time, checking
the dipstick.
The approximate quantity of oil needed to
fill between the low level line and the full
level on the dipstick is indicated below for
reference.
When the level reaches within the correct
range, install the filler cap hand-tight.
Oil quantity, L (qt., Imp. qt.): 7A-FE engine 1.2 (1.3, 1.1)
5S-FE engine 1.0 (1.1, 0.9)

Avoid overfilling, or the engine could be damaged.
Check the oil level on the dipstick
once again after adding the oil.
NOTICE
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163
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 SH. The cen-
ter portion of the label shows the SAE vis-
cosity grade such as SAE 10W-30.
Energy-Conserving IIº shown in the low-
er portion, indicates that the oil has fuel-
saving capabilities. Oils marked Ener-
gy-Conserving IIº will have higher
fuel-saving capabilities than oil marked
Energy-Conservingº.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee)
Certification Mark is displayed on the front
of the container. Look at the see-through coolant res-
ervoir when the engine is cold. The
coolant level is satisfactory if it is be-
tween the FULLº and LOWº 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. However, if the
level is on or below the LOWº line, add
coolant. Bring the level up to the FULLº
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 ra-
diator, 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.
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
CAUTION!
Coolant type selection
Your coolant must contain ethylene-gly-
col antifreeze. In addition to preventing
freezing and subsequent damage to the
engine, this will also prevent corrosion.
Further supplemental inhibitors or addi-
tives are neither needed nor recom-
mended.
Read the antifreeze container for informa-
tion on freeze protection. Follow the
manufacturer 's directions for how much
to mix with water. The total capacity of the
cooling system is given in Part 8. We rec-
ommend 50% solution be used for your
Toyota, or a sufficient quantity to provide
protection to about -35 C (-31 F).
Do not use alcohol type antifreeze
or plain water alone.
NOTICE
Checking the engine coolant
level
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Part 7Checking battery conditionÐ
ÐPrecautions171
DO-IT-YOURSELF
MAINTENANCEÐ
Chapter 7-3
Electrical components

Checking battery condition

Battery recharging precautions

Checking and replacing fuses

Adding washer fluid

Checking headlight aims

Replacing light bulbs
BATTERY PRECAUTIONS
The battery produces flammable
and explosive hydrogen gas.

Do not cause a spark from the bat-
tery with tools.

Do not smoke or light a match near
the battery.
The electrolyte contains poisonous
and corrosive sulfuric acid.

Avoid contact with eyes, skin or
clothes.

Never ingest electrolyte.

Wear protective safety glasses
when working near the battery.

Keep children away from the bat-
tery.
EMERGENCY MEASURES

If electrolyte gets in your eyes,
flush your eyes with clean water
immediately and get immediate
medical attention. If possible, con-
tinue to apply water with a sponge
or cloth while en route to the medi-
cal office. CAUTION
!

If electrolyte gets on your skin,
thoroughly wash the contact area.
If you feel pain or burning, get
medical attention immediately.

If electrolyte gets on your clothes,
there is a possibility of its soaking
through to your skin, so immedi-
ately take off the exposed clothing
and follow the procedure above, if
necessary.

If you happen to swallow electro-
lyte, drink a large quantity of water
or milk. Follow with milk of mag-
nesia, beaten raw egg or vegetable
oil. Then go immediately for emer-
gency help.
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