engine TOYOTA SUPRA 2021 (in English) Workshop Manual

2625-1. DRIVING TIPS
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
perforated brake discs can emit
functional noises. However,
functional noises have no effect
on the performance and opera-
tional reliability of the brake.
When roads are wet, salted, or
in heavy rain, gently press the
brake pedal every few miles.
Ensure that this action does not
endanger other traffic.
The heat generated during brak-
ing dries brake discs and brake
pads and protects them against
corrosion.
In this way braking efficiency will
be available when you need it.
■General information
Drive long or steep downhill gra-
dients in the gear that requires
least braking effort. Otherwise,
the brakes may overheat and
reduce brake efficiency.
You can increase the engine's
braking effect by shifting down,
going all the way to first gear, if
needed.
■Safety information
Corrosion on the brake discs
and contamination on the brake
pads are increased by the fol-
lowing circumstances:
 Low mileage.
 Extended periods when the
vehicle is not used at all.
Objects in the area around
the pedals
WA R N I N G
Objects in the dri
ver's floor area
can limit the peda l distance or
block a depressed pedal. There is
a risk of an accident. Stow objects
in the vehicle such that they are
secured and cannot enter into the
driver's floor area. Use floor mats
that are suitable for the vehicle
and can be safely attached to the
floor. Do not use loose floor mats
and do not layer several floor
mats. Make sure t hat there is suf-
ficient clearance for the pedals.
Ensure that the floor mats are
securely fastened again after they
were removed, fo r instance for
cleaning.
Driving in wet conditions
Hills
WA R N I N G
Light but consis tent brake pres-
sure can lead to high tempera-
tures, brakes wearing out and
possibly even brake failure. There
is a risk of an accident. Avoid
placing excessive stress on the
brake system.
WA R N I N G
In idle state or with the engine
switched off, safety functions, for
instance engine braking effect,
braking assistance and steering
assistance, may not be available.
There is a risk of accident. Do not
attempt to drive in idle state or
with the engine switched off.
Brake disc corrosion

2645-1. DRIVING TIPS
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
Additional weight increases fuel
consumption.
Attached parts on the vehicle
impair the aerodynamics and
increase the fuel consumption.
Open windows increase air
resistance and therefore lead to
greater fuel consumption.
Tires can affect consumption in
various ways, for instance tire
size may influence consump-
tion.
Check and, if needed, correct
the tire inflation pressure at least
twice a month and before start-
ing on a long trip.
Low tire inflation pressure
increases rolling resistance and
thus raises fuel consumption
and tire wear.Do not wait for the engine to
warm-up while the vehicle
remains stationary. Start driving
right away, but at moderate
engine speeds.
This is the quickest way of
warming the cold engine up to
operating temperature.
Driving smoothly and proactively
reduces fuel consumption.
Avoid unnecessary acceleration
and braking.
By maintaining a suitable dis-
tance to the vehicle driving
ahead of you.
Driving at low engine speeds
lowers fuel consumption and
reduces wear.
If necessary, observe the vehi-
cle's gear shift indicator, refer to
page 146.
When approaching a red light,
take your foot off the accelerator
and let the vehicle coast to a
halt.
For going downhill take your foot
off the accelerator and let the
Remove unnecessary
cargo
Remove attached parts fol-
lowing use
Closing the windows
Tires
General information
Check the tire inflation pres-
sure regularly
Drive away without delay
Look well ahead when
driving
Avoid high engine speeds
Use coasting conditions

2655-1. DRIVING TIPS
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
5
DRIVING TIPS
vehicle roll.
The flow of fuel is interrupted
while coasting.
Switch off the engine during lon-
ger stops, for instance at traffic
lights, railroad crossings or in
traffic congestion.
The Auto Start/Stop function of
the vehicle automatically
switches off the engine during a
stop.
If the engine is switched off and
then restarted rather than leav-
ing the engine running con-
stantly, fuel consumption and
emissions are reduced. Sav-
ings can begin within a few sec-
onds of switching off the engine.
In addition, fuel consumption is
also determined by other fac-
tors, such as driving style, road
conditions, maintenance or envi-
ronmental factors.
Functions such as seat heating
and the rear window defroster require a lot of energy and
increase fuel consumption,
especially in city and
stop-and-go traffic.
Switch off these functions if they
are not needed.
Have the vehicle maintained
regularly to achieve optimal
vehicle efficiency and service
life. Toyota recommends that
maintenance work be performed
by Toyota.
For information on the Mainte-
nance System, refer to page
307.
Switch off the engine
during longer stops
Switching off the engine
Auto Start/Stop function
Switch off any functions
that are not currently
needed
Have maintenance carried
out

267
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
6
6
MOBILITY
MOBILITY
.6-1. MOBILITYRefueling ..................... 268
Fuel ............................. 270
Wheels and tires ......... 272
Engine compartment ... 298
Engine oil .................... 301
Coolant........................ 305
Maintenance ............... 307
Replacing components .................................. 309
Breakdown assistance .................................. 319
Care ............................ 328

2686-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
6-1.MOBILITY
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.
Follow the fuel recommenda-
tion, refer to page 270, prior to
refueling.
When refueling, insert the filler
nozzle completely into the filler
pipe. Lifting up the fuel pump
nozzle during refueling causes:
Premature switching off.
 Reduced return of the fuel
vapors.
The fuel tank is full when the
filler nozzle clicks off the first
time.
Make sure that the fuel cap is closed properly after refueling,
otherwise the emissions warn-
ing light may light up.
Follow safety regulations posted
at the gas station.
1
Briefly press the rear edge of
the fuel filler flap.
Refueling
Vehicle features and
options
Follow the following when
refueling
General information
Safety information
NOTICE
With a driving range of less than
30 miles/50 km the engine may
no longer have sufficient fuel.
Engine functions are not ensured
anymore. There is a risk of dam-
age to property. Refuel promptly.
NOTICE
Fuels are toxic and aggressive.
Overfilling of the fuel tank can
damage the fuel system. Painted
surfaces may be damaged by
contact with fuel. Escaping fuel
can harm the environment. There
is a risk of damage to property.
Avoid overfilling.
Fuel cap
Opening

2706-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
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 efficiency, the
gasoline should be sulfur-free or
very low in sulfur content.
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.
Ethanol should meet the follow-
ing quality standards:
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: comply with the current stan-
dard in each case.
Fuel
Vehicle features andop-
tions
Fuel recommendation
General information
Gasoline
General information
Safety information
WA R N I N G
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.
If drivability prob lems are encoun-
tered, we recommend switching
to a high quality gasoline brand
and a higher octa ne grade - AKI
number - for a few tank fills. To
avoid harmful engi ne 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.

2716-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
6
MOBILITY
SZ-R models
Toyota recommends AKI 91.
RZ models
Toyota recommends AKI 93.
Refuel with this gasoline to achieve the rated performance
and consumption values.
Toyota recommends AKI 89.
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.
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:
• Leaded gasoline.
• Metallic additives, for instance
manganese or iron.
Do not press the Start/Stop button
after refueling with the wrong fuel.
Contact your Toyota dealer.
NOTICE
Incorrect fuels can damage the
fuel system and the engine. There
i s a r i s k o f d a m a g e t o p r o p e r t y. D o
not use fuels with a higher per-
centage of ethanol than recom-
mended. Do not refuel with fuels
containing metha nol, e.g. M5 to
M100.
NOTICE
Fuel that does not comply with the
minimum quality can compromise
engine function or cause engine
damage. There is a risk of dam-
age to property . Do not fill with
fuel that does not comply with the
minimum quality.
Recommended fuel grade
Minimum fuel grade

2856-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
6
MOBILITY
1 Shake the sealant container.
2 Pull filling hose completely
out of the cover of the sealant
container. Do not kink the
hose.
3 Slide the sealant container
into the holder on the com-
pressor housing, ensuring
that it engages audibly.
4 Screw the filling hose of the
sealant container onto the tire valve of the nonworking
wheel.
5 With the compressor
switched off, insert the plug
into the power socket inside
the vehicle.
6 With standby state switched
on or the engine running,
switch on the compressor.
Let the compressor run for max.
10 minutes to fill the tire with
sealant and achieve a tire infla-
tion pressure of approx. 2.0 bar.
Filling

2866-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
While the tire is being filled with
sealant, the tire inflation pres-
sure may sporadically reach
approx. 5 bar. Do not switch off
the compressor at this point.
1Switch off the compressor.
2 Read the tire inflation pres-
sure on the tire pressure
gauge.
To continue the trip, a tire infla-
tion pressure of at least 2 bar
must be reached.
1 Unscrew the filling hose of
the sealant container from
the tire valve.
2 Press the red unlocking
device.
3 Remove the sealant con-
tainer from the compressor.
4 Wrap and store the sealant
container in suitable material
to avoid dirtying the cargo
area. 1
Pull the connector out of the
power socket inside the vehi-
cle.
2 Drive 33 ft/10 m forward and
back to distribute the sealant
in the tire.
3 Screw the connection hose of
the compressor directly onto
the tire valve stem.
4 Insert the connector into the
power socket inside the vehi-
cle.
5 With standby state switched
on or the engine running,
switch on the compressor.
If a tire inflation pressure of at least
2 bar cannot be reached, contact
your Toyota dealer.
If a tire inflation pressure of at least
Checking and adjusting
the tire inflation pressure
Checking
Removing and stowing the
sealant container
Minimum tire inflation pres-
sure is not reached

2876-1. MOBILITY
Supra Owner’s Manual_U (from Mar. ’20
Prod.)
6
MOBILITY
2 bar is reached, see Minimum tire
inflation pressure is reached.
6 Unscrew the connection
hose of the compressor from
the tire valve.
7 Pull the connector out of the
power socket inside the vehi-
cle.
8 Stow the Mobility System in
the vehicle.
1 Unscrew the connection
hose of the compressor from
the tire valve.
2 Pull the connector out of the
power socket inside the vehi-
cle.
3 Stow the Mobility System in
the vehicle.
4 Immediately drive approx. 5
miles/10 km to ensure that
the sealant is evenly distrib-
uted in the tire.
Do not exceed a speed of 50
mph/80 km/h.
If possible, do not drive at speeds
less than 12 mph/20 km/h.
1Stop at a suitable location. 2
Screw the connection hose of
the compressor directly onto
the tire valve stem.
3 Insert 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.
Minimum tire inflation pres-
sure is reached
Adjustment