engine TOYOTA SUPRA 2023 Repair Manual

2875-1. MOBILITY
5
MOBILITY
3Insert the connector into the
power socket inside the vehi-
cle.
4 Correct the tire inflation pres-
sure to at least 2.0 bar.
• Increase tire inflation pres- sure: with standby state
switched on or the engine
running, switch on the com-
pressor.
• Reduce tire inflation pressure: press the button on the com-
pressor.
5 Unscrew the connection
hose of the compressor from
the tire valve.
6 Pull the connector out of the
power socket inside the vehi-
cle.
7 Stow the Mobility System in
the vehicle.
Do not exceed the maximum
permissible speed of 50 mph/80
km/h
Reset the Tire Pressure Monitor
TPM, refer to page 287.
Replace the nonworking tire and the sealant container of the
Mobility System promptly.
Tire chains cannot be mounted.
Snow tires should be used
instead.
The system monitors tire infla-
tion pressure in the four
mounted tires. The system
warns you if there is a loss of
pressure in one or more tires.
Sensors in the tire valves mea-
sure the tire inflation pressure
and tire temperature.
The system detects the
mounted tires automatically. The
system displays the specified
nominal pressure values on the
Control Display and compares
these values to the actual tire
Continuing the trip
Snow chains
NOTICE
■Driving with tire chains
Do not fit tire chains. Tire chains
may damage the vehicle body
and suspension, and adversely
affect driving performance.
Selecting tire chains
Tire Pressure Monitor
TPM
Concept
General information

2975-1. MOBILITY
5
MOBILITY
3Remove the adapter and
stow it after screwing on the
lug bolt.
This chapter describes all stan-
dard, country-specific and
optional features offered with
the series. It also describes fea-
tures and functions that are not
necessarily available in your
vehicle, e.g., due to the selected
options or country versions. This
also applies to safety-related
functions and systems. When
using these functions and sys-
tems, the applicable laws and
regulations must be observed.Engine compar tment
Vehicle features and
options

2985-1. MOBILITY
1Filler neck for washer fluid
2 Jump-starting, negative battery terminal
3 Jump-starting, positive battery terminal
4 Oil filler neck
5 Coolant reservoir, auxiliary cooling
6 Coolant reservoir, engine
7 Vehicle identification number
Overview
Hood
Safety information
WARNING
Improperly executed work in the
engine compartment can damage
vehicle components and impair
vehicle functions. There is a risk
of an accident and damage to
property. Have work in the engine
compartment performed by your
Toyota dealer.
WARNING
The engine compartment accom-
modates moving components.
Certain components in the engine
compartment can also move with
the vehicle switched off, for
instance the radiator fan. There is
a risk of injury. Do not reach into
the area of moving parts. Keep
articles of clothing and hair away
from moving parts.

3005-1. MOBILITY
This chapter describes all stan-
dard, country-specific and
optional features offered with
the series. It also describes fea-
tures that are not necessarily
available in your vehicle, for
instance, due to the selected
options or country versions. This
also applies to safety-related
functions and systems. When
using these functions and sys-
tems, the applicable laws and
regulations must be observed.
Depending on the region, many
gas stations sell fuel that has
been customized to winter or
summer conditions. Fuel that is
available in winter,for instance
helps make a cold start easier.
For the best fuel consumption,
the gasoline should be sul-
fur-free or very low in sulfur con-
tent.
Fuels that are marked on the gas pump as containing metal
must not be used.
Fuels with a maximum ethanol
content of 25 %, i. e. E10 or
E25, may be used for refueling.
To achieve nominal values for
mileage and consumption, fol-
low the specified fuel quality in
the sales literature.
Ethanol should meet the follow-
ing quality standards:
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: comply with the current valid
standard in each case.
The use of fuels of minimum
quality has no influence on the
service life of the engine.
Operating materials
Vehicle features and
options
Fuel recommendation
General information
Gasoline
General information
Safety information
WARNING
The use of poor-quality fuels may
result in harmful engine deposits
or damage. Additionally, problems
relating to drivability, starting and
stalling, especially under certain
environmental conditions such as
high ambient temperature and
high altitude, may occur.

3015-1. MOBILITY
5
MOBILITY
2.0 models
Toyota recommends AKI 91.
3.0 and 3.0 Premium models
Toyota recommends AKI 93.
Refuel with this gasoline to
achieve the rated performance
and consumption values.
The minimum grade is AKI 87.
If you use gasoline with this min-
imum AKI Rating, the engine
may produce knocking sounds
when starting at high external
temperatures. This has no effect
on the engine life.
This chapter describes all stan-
dard, country-specific and
optional features offered with
the series. It also describes fea-
tures that are not necessarily
available in your vehicle, for
WARNING
If drivability prob lems are encoun-
tered, we recommend switching
to a high quality gasoline brand
and a higher octane grade - AKI
number - for a few tank fills. To
avoid harmful engine deposits, it
is highly recommended to pur-
chase gasoline from Top Tier
retailers.
Failure to comply with these rec-
ommendations may result in the
need for unscheduled mainte-
nance.
NOTICE
Even small quantities of the
wrong fuel or wrong fuel additives
can damage the fuel system and
engine. Furthermore, the catalytic
converter is permanently dam-
aged. There is a risk of damage to
property. Do not refuel or add the
following in the case of gasoline
engines:

3025-1. MOBILITY
instance, due to the selected
options or country versions. This
also applies to safety-related
functions and systems. When
using these functions and sys-
tems, the applicable laws and
regulations must be observed.
The engine oil consumption is
dependent on your driving style
and driving conditions.
Therefore, regularly check the
engine oil level after refueling by
taking a detailed measurement.
The engine oil consumption can
increase in the following situa-
tions, for example:
• Sporty driving style.
• Break-in of the engine.
• Idling of the engine.
• With use of engine oil types that are classified as not suit-
able.
Different vehicle messages
appear on the Control Display
depending on the engine oil
level. The electronic oil measurement
has two measuring principles:
• Monitoring.
• Detailed measurement.
When making frequent
short-distance trips or using a
sporty driving style, for instance
when taking curves aggres-
sively, regularly perform a
detailed measurement.
■Concept
The engine oil level is monitored
electronically while driving and
can be shown on the Control
Display.
If the engine oil level is outside
its permissible operating range,
a vehicle message is displayed.
■Functional requirements
A current measured value is
available after approx. 30 min-
utes of normal driving.
General information
Safety information
NOTICE
An engine oil level
that is too low
causes engine damage. There is
a risk of damage to property.
Immediately add engine oil.
NOTICE
Too much engine oil can damage
the engine or the catalytic con-
verter. There is a risk of damage
to property. Do not add too much
engine oil. When too much engine
oil is added, have the engine oil
level corrected by your Toyota
dealer.
Electronic oil measure-
ment
General information
Monitoring

3035-1. MOBILITY
5
MOBILITY
■Displaying the engine oil
level
Via Toyota Supra Command:
1 "My Vehicle"
2 "Vehicle status"
3 "Engine oil level"
The engine oil leve l is displayed.
■System limits
When making frequent
short-distance trips or using a
sporty driving style, it may not
be possible to calculate a mea-
sured value. In this case, the
measured value for the last, suf-
ficiently long trip is displayed.
■Concept
The engine oil level is checked
when the vehicle is stationary
and displayed via a scale.
If the engine oil level is outside
its permissible operating range,
a vehicle message is displayed.
■General information
During the measurement, the
idle speed is increased some-
what.
■Functional requirements
• Vehicle is parked in a horizon- tal position.
• Manual transmission: gear- shift lever in idle position,
clutch and accelerator pedals
not depressed.
• Automatic transmission: selector lever in selector lever
position N or P and accelera-
tor pedal not depressed.
• Engine is running and is at operating temperature.
■Performing a detailed mea-
surement
Via Toyota Supra Command:
1 "My Vehicle"
2 "Vehicle status"
3 "Engine oil level"
4 "Measure engine oil level"
5 "Start measurement"
The engine oil level is checked
and displayed via a scale.
Only add engine oil when the
message is displayed in the
instrument cluster. The quantity
to be added is indicated in the
message shown on the Control
Display.
Only add suitable types of
engine oil, refer to page 304.
Safely park the vehicle and
switch off drive-ready state
before adding engine oil.
Take care not to add too much
engine oil.
Detailed measurement
Adding engine oil
General information

3045-1. MOBILITY
The oil filler neck is located in
the engine compartment, refer
to page 298.
1Open the hood, refer to page
299. 2
Open the lid counterclock-
wise.
3 Add engine oil.
4 Close the cap.
The engine oil quality is critical
for the life of the engine.
Only add the types of engine oil
which are listed.
Safety information
WARNING
Operating material
s, for instance
oils, greases, coolants, fuels, can
contain harmful ingredients.
There is a risk o f injuries or dan-
ger to life. Follow the instructions
on the containers. Avoid the con-
tact of articles of clothing, skin or
eyes with operating materials. Do
not refill operating materials into
different bottles. Store operating
materials out of reach of children.
NOTICE
An engine oil level that is too low
causes engine damage. There is
a risk of damage to property.
Immediately add engine oil.
NOTICE
Too much engine oil can damage
the engine or the catalytic con-
verter. There is a risk of damage
to property. Do not add too much
engine oil. When too much engine
oil is added, have the engine oil
level corrected by your Toyota
dealer.
Overview
Adding engine oil
Engine oil types to add
General information
Safety information
NOTICE
Oil additives can damage the
engine. There is a risk of damage
to property. Do not use oil addi-
tives.
NOTICE
Incorrect engine oil can cause
malfunctions in the engine or
damage it. There is a risk of dam-
age to property. When selecting
an engine oil, make sure that the
engine oil has the correct oil rat-
ing.

3055-1. MOBILITY
5
MOBILITY
Up to 1 US quart/liter of an
engine oil with the following oil
specification can be topped up:
If an engine oil suitable for con-
tinuous use is not available, up
to 1 US quart/liter of an engine
oil with the following oil rating
can be added:
■API grade
■Viscosity grade (SAE)
More information about suitable
oil ratings and viscosity grades
of engine oils can be requested
from your Toyota dealer. The vehicle manufacturer rec-
ommends that you have your
Toyota dealer change the
engine oil.
This chapter describes all stan-
dard, country-specific and
optional features offered with
the series. It also describes fea-
tures that are not necessarily
available in your vehicle, for
instance, due to the selected
options or country versions. This
also applies to safety-related
functions and systems. When
using these functions and sys-
tems, the applicable laws and
regulations must be observed.
Coolant consists of water and
additives.
Coolant consists of water and
coolant additive. Not all com-
Suitable engine oil types
Gasoline Engine
Toyota Genuine Motor Oil SN
0W-20 C5 for GR Toyota Supra
BMW Longlife-17 FE+ 0W-20
Alternative engine oil types
API SN PLUS
API SP
SAE 0W-20.
SAE 0W-30.
Engine oil change
NOTICE
Engine oil that is not changed in
timely fashion can cause
increased engine wear and thus
engine damage. There is a risk of
damage to property. Do not
exceed the service data indicated
in the vehicle.
Coolant
Vehicle features andop-
tions
General information

3065-1. MOBILITY
mercially available additives are
suitable for the vehicle. The
vehicle manufacturer recom-
mends using coolant with the
BMW LC-18 specification. Do
not mix additives of different col-
ors. Observe the water - additive
mixture ratio of 50:50. Informa-
tion about suitable additives is
available from your Toyota
dealer.
Depending on the motorization,
there are up to two coolant res-
ervoirs in the engine compart-
ment. Check and top up the
coolant levels on a regular
basis.The coolant may be overfilled in
the coolant reservoir when the
vehicle is delivered from the fac-
tory. The normal coolant level is
achieved by operating the vehi-
cle for a longer period.
The coolant level is indicated
using the maximum mark in the
filler neck of the coolant reser-
voir.
Additional information:
For an overview, refer to page
298.
1
Let the engine cool.
2 Open the hood, refer to page
299.
3 Turn the lid of the coolant
reservoir slightly counter-
clockwise to allow any
excess pressure to dissi-
pate, then open it.
4 Open the coolant reservoir
lid.
5 The coolant level is correct
when it is just below the max-
imum mark in the filler neck.
Safety information
WARNING
With the engine hot and the cool-
ing system open, coolant can
escape and lead to scalding.
There is a risk of injury. Only open
the cooling system with the
engine cooled down.
WARNING
Additives are harmful and incor-
rect additives can damage the
engine. There is a risk of injury
and risk of damage to property.
Do not allow additives to come
into contact with skin, eyes or arti-
cles of clothing. Use suitable addi-
tives only.
Coolant level
General information
Checking the coolant level