oil viscosity TOYOTA tC 2010 Owners Manual (in English)

157
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.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 lmp.qt./600
miles)
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. Scion 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.
Facts about engine oil
consumption

187
When encountering flooded roads
Do not drive on a road that has flooded
after heavy rain etc. Doing so may cause
serious damage to the vehicle.
NOTICE
Driving on a flooded road may cause
the engine to stall as well as cause
serious vehicle malfunctions such as
shorts in electrical components and
engine damage from water immersion.
In the event that you drive on a
flooded road and the vehicle is
flooded, be sure to have your Scion
dealer check brake function, changes
in quantity and quality of engine oil,
transaxle fluid, etc. and lubricant con-
dition for the bearings and suspen-
sion joints (where possible) and the
function of all joints and bearings.
Winter driving tips
Make sure you have a proper freeze
protection for engine coolant.
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.)
See “Checking the engine coolant level”
on page 238 for details of coolant type
selection.
“Toyota Super Long Life Coolant” is a
mixture of 50% coolant and 50% deionized
water. This coolant provides protection
down to about –35C (–31 F).
NOTICE
Do not use plain water alone.
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. Section 7–3 tells you how to visually
inspect the battery. Your Scion 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 page 237 for recommended viscosity.
Leaving a heavy summer oil in your ve-
hicle during winter months may cause
harder starting. If you are not sure about
which oil to use, call your Scion deal-
er—they 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.

237
ENGINE OIL SELECTION
“Toyota Genuine Motor Oil” is used in
your Scion vehicle. Use Scion approved
“Toyota Genuine Motor Oil” or equivalent
to satisfy the following grade and viscos-
ity.
Oil grade:ILSAC multigrade engine oil.
Recommended viscosity: SAE 5W–20 or 0W −20
OIL008
Outside temperature SAE 5W20 or 0W20 engine oil may be
used. However, SAE 0W20 is the best
choice for good fuel economy and good
starting in cold weather.
API02
How to read oil container label
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is added to some oil con-
tainers to help you select the oil you
should use.

263
Service specifications
ENGINE
Valve clearance (engine cold), mm (in.):Intake 0.19–0.29 (0.007–0.012)
Exhaust 0.38–0.48 (0.015–0.019)
Spark plug type: DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm (in.): 1.1 (0.043)
ENGINE LUBRICATION
Oil capacity (drain and ref ill), L (qt., Imp.
qt.): With filter 3.8 (4.0, 3.3)
Without filter 3.6 (3.8, 3.2)
“Toyota Genuine Motor Oil” is used in
your Scion vehicle. Use Scion approved
“Toyota Genuine Motor Oil” or equivalent
to satisfy the following grade and viscos-
ity. Oil grade:
ILSAC multigrade engine oil
Please contact your Scion dealer for fur-
ther details.
Recommended viscosity:
SAE 5W −20 or 0W–20
OIL008
Outside temperature
COOLING SYSTEM
Total capacity, L (qt., Imp.qt.):
Manual transmission 6.8 (7.2, 6.0)
Automatic transmission 6.7 (7.1, 5.9)
Coolant type:
“Toyota Super Long Life Coolant” is
used in your Scion vehicle at factory fill.
In order to avoid technical problems,
only use “Toyota Super Long Life Cool-
ant” or similar high quality ethylene gly-
col 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 Scion dealer for fur-
ther 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.

264
CLUTCH
Pedal free play, mm (in.):5–15 (0.2–0.6)
Fluid type: SAE J1703 or FMVSS No. 116 DOT 3
MANUAL TRANSAXLE
Oil capacity, L (qt., Imp.qt.): 2.5 (2.6, 2.2)
Oil type: Gear oil API GL–4 or GL–5
Recommended oil viscosity: SAE 75W–90
AUTOMATIC TRANSAXLE
Fluid capacity, L (qt., Imp.qt.): 8.1 (8.6, 7.1)
Fluid type: Toyota Genuine ATF WS
Change automatic transmission fluid only
as necessary. Generally, it is necessary to change
automatic transmission fluid only if your
vehicle is driven under one of the Special
Operating Conditions listed in your
“Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”. When
changing the automatic transmission fluid,
use only “Toyota Genuine ATF WS” to aid
in assuring optimum transaxle
performance.
Notice: Using automatic transmission
fluid other than “Toyota Genuine ATF
WS” may cause deterioration in shift
quality, locking up of your transmission
accompanied by vibration, and ultimate-
ly damage the automatic transmission
of your vehicle.
BRAKES
Minimum pedal clearance when depressed
with the pressure of 490 N (50 kgf, 110
lbf) with the engine running, mm (in.):
90 (3.5)
Pedal free play, 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): 6–9 clicks
Fluid type: SAE J1703 or FMVSS No. 116 DOT 3
STEERING
Wheel free play: Less than 30 mm (1.2 in.)
Power steering fluid type: Automatic transmission fluid DEXRON II
or III