Lexus RC300 (2022 year). Manual in english — page 20

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8-1. Specifications

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Engine oil selection

“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-6A multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20 at
the next oil change.

Outside temperature

Oil viscosity (0W-20 is explained here
as an example):
• The 0W in 0W-20 indicates the

characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather.

• The 20 in 0W-20 indicates the vis-

cosity characteristic of the oil when
the oil is at high temperature. An oil
with a higher viscosity (one with a

higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.

How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you
should use.

A

330

8-1. Specifications

*

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

■

Spark plug

Cooling system

Capacity

*

RC350/RC3
00 AWD

10.0 qt. (9.5 L, 8.4 Imp. qt.)

RC300



Gasoline engine

8.5 qt. (8.0 L, 7.0 Imp. qt.)



Intercooler

3.3 qt. (3.1 L, 2.7 Imp. qt.)

Coolant type

Use either of the following:



“Toyota Super Long Life Coolant”



Similar high-quality ethylene glycol-based non-silicate,
non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology

Do not use plain water alone.

Ignition system (spark plug)

RC350/RC300 AWD

RC300

Make

DENSO FK20HBR8

NGK DILFR7K9G

Gap

0.031 in. (0.8 mm)

0.035 in. (0.9 mm)

NOTICE

■

Iridium-tipped spark plugs

Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

Electrical system (battery)

Open voltage at 68°F (20°C):

12.3 V or higher
If the voltage is lower than the standard value,
charge the battery.
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)

Charging rates

5 A max.

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8-1. Specifications

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*

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.



Vehicles without LSD (Limited Slip Differential)



Vehicles with LSD (Limited Slip Differential)

*

: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.

Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent oil of

Automatic transmission

Fluid capacity

*



RC350

10.0 qt. (9.5 L, 8.4 Imp. qt.)



RC350 AWD/RC300 AWD

10.6 qt. (10.0 L, 8.8 Imp. qt.)



RC300

9.2 qt. (8.7 L, 7.7 Imp. qt.)

Fluid type

Toyota Genuine ATF WS

NOTICE

■

Transmission fluid type

Using transmission fluid other than the above type may cause abnormal noise or vibra-

tion, or damage the transmission of your vehicle.

Front differential (AWD models)

Oil capacity

0.74 qt. (0.70 L, 0.61 Imp. qt.)

Oil type and viscosity

Hypoid gear oil API GL-5
Above 0°F (-18°C): SAE90
Below 0°F (-18°C): SAE80W or SAE80W-90

Rear differential

Oil capacity

1.42 qt. (1.35 L, 1.19 Imp. qt.)

Oil type and viscosity

Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

*

Oil capacity

1.42 qt. (1.35 L, 1.19 Imp. qt.)

Oil type and viscosity

Toyota Genuine Differential Gear Oil LX 75W-85
GL-5 or equivalent

*

332

8-1. Specifications

matching quality to satisfy the above specification. Please contact your Lexus dealer for
further details.

*

: Minimum pedal clearance when depressed with a force of 112.4 lbf (500 N, 51.0 kgf)

while the engine is running.



Type A

Brakes

Pedal clearance

*



RC350 AWD/RC300 AWD

4.5 in. (115 mm) Min.



RC350/RC300

4.1 in. (104 mm) Min.

Pedal free play

0.04



0.24 in. (1.0



6.0 mm)

Brake pad wear limit

0.04 in. (1.0 mm)

Parking brake lining wear limit

0.04 in. (1.0 mm)

Fluid type

SAE J1703 or FMVSS No.116 DOT 3, or SAE
J1704 or FMVSS No.116 DOT 4 brake fluid

Steering

Free play

Less than 1.2 in. (30 mm)

Tires and wheels

Tire size

235/45R18 94Y, T155/70D17 110M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 3 psi (20 kPa, 0.2 kgf/cm

2

or bar) to the front tires, 6

psi (40 kPa, 0.4 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

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

Type B

Wheel size

18



8J, 17



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

235/45R18 94Y, T145/70D18 107M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 3 psi (20 kPa, 0.2 kgf/cm

2

or bar) to the front tires, 6

psi (40 kPa, 0.4 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

Wheel size

18



8J, 18



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

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8-1. Specifications



Type C



Type D

Tire size

235/45R18 94V, T155/70D17 110M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 3 psi (20 kPa, 0.2 kgf/cm

2

or bar) to the front tires, 6

psi (40 kPa, 0.4 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

Wheel size

18



8J, 17



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

235/45R18 94V, T145/70D18 107M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 3 psi (20 kPa, 0.2 kgf/cm

2

or bar) to the front tires, 6

psi (40 kPa, 0.4 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

Wheel size

18



8J, 18



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

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

Type E



Type F

Tire size

235/40R19 92V, T155/70D17 110M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires, 8

psi (50 kPa, 0.5 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

Wheel size

19



8J, 17



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

235/40R19 92V, T145/70D18 107M (spare)

Tire inflation pressure (Rec-
ommended cold tire inflation
pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires, 8

psi (50 kPa, 0.5 kgf/cm

2

or bar) to the rear tires. Never

exceed the maximum cold tire inflation pressure indicated
on the tire sidewall.

Wheel size

19



8J, 18



4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

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8-1. Specifications



Type G



Type H

Tire size

Front tires: 235/40R19 96Y XL
Rear tires: 265/35R19 94Y
Spare tire: T155/70D17 110M

Tire inflation pressure (Rec-

ommended cold tire inflation

pressure)

Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires.

Never exceed the maximum cold tire inflation pressure

indicated on the tire sidewall.

Wheel size

Front wheels: 19



8J

Rear wheels: 19



9J

Spare wheel: 17



4T

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

Front tires: 235/40R19 96Y XL
Rear tires: 265/35R19 94Y
Spare tire: T145/70D18 107M

Tire inflation pressure (Rec-

ommended cold tire inflation

pressure)

Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires.

Never exceed the maximum cold tire inflation pressure

indicated on the tire sidewall.

Wheel size

Front wheels: 19



8J

Rear wheels: 19



9J

Spare wheel: 18



4T

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

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

Type I



Type J

Tire size

Front tires: 235/40R19 92Y
Rear tires: 265/35R19 94Y
Spare tire: T155/70D17 110M

Tire inflation pressure (Rec-

ommended cold tire inflation

pressure)

Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires.

Never exceed the maximum cold tire inflation pressure

indicated on the tire sidewall.

Wheel size

Front wheels: 19



8J

Rear wheels: 19



9J

Spare wheel: 17



4T

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

Front tires: 235/40R19 92Y
Rear tires: 265/35R19 94Y
Spare tire: T145/70D18 107M

Tire inflation pressure (Rec-

ommended cold tire inflation

pressure)

Driving under normal conditions
Front: 35 psi (240 kPa, 2.4 kgf/cm

2

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

2

or bar)

Spare: 60 psi (420 kPa, 4.2 kgf/cm

2

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 6 psi (40 kPa, 0.4 kgf/cm

2

or bar) to the front tires.

Never exceed the maximum cold tire inflation pressure

indicated on the tire sidewall.

Wheel size

Front wheels: 19



8J

Rear wheels: 19



9J

Spare wheel: 18



4T

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

338

8-1. Specifications

A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)

Light bulbs

Light bulbs

Bulb No.

W

Type

Exterior

Rear turn signal lights



21

A

Interior

Vanity lights



8

B

Footwell lights

194

3.8

B

Trunk light



5

B

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Gasoline quality

In very few cases, driveability problems may

be caused by the brand of gasoline you are

using. If driveability problems persist, try

changing the brand of gasoline. If this does

not correct the problem, consult your Lexus

dealer.

■

Recommendation of the use of gasoline

containing detergent additives

●

Lexus recommends the use of gasoline

that contains detergent additives to avoid

the build-up of engine deposits.

●

All gasoline sold in the U.S.A. contains

minimum detergent additives to clean

and/or keep clean intake systems, per

EPA’s lowest additives concentration pro-

gram.

●

Lexus strongly recommends the use of

Top Tier Detergent Gasoline. For more

information on Top Tier Detergent Gaso-

line and a list of marketers, please go to

the official website www.toptiergas.com.

■

Recommendation of the use of low

emissions gasoline

Gasolines containing oxygenates such as

ethers and ethanol, as well as reformulated

gasolines, are available in some cities.

These fuels are typically acceptable for use,

providing they meet other fuel require-

ments.
Lexus recommends these fuels, since the

formulations allow for reduced vehicle

emissions.

■

Non-recommendation of the use of

blended gasoline

●

Use only gasoline containing up to 15%

ethanol.

DO NOT use any flex-fuel or gasoline

that could contain more than 15% etha-

nol, including from any pump labeled
E30 (30% ethanol [

]), E50 (50%

ethanol [

]), E85 (85% ethanol [

])

(which are only some examples of fuel

containing more than 15% ethanol).

●

If you use gasohol in your vehicle, be sure

that it has an octane rating no lower than

91.

●

Lexus does not recommend the use of

gasoline containing methanol.

■

Non-recommendation of the use of gas-

oline containing MMT

Some gasoline contains an octane enhanc-

ing additive called MMT (Methylcyclopen-

tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-

oline that contains MMT. If fuel containing

MMT is used, your emission control system

may be adversely affected.
The malfunction indicator lamp on the

instrument cluster may come on. If this hap-

pens, contact your Lexus dealer for service.

■

If your engine knocks

●

Consult your Lexus dealer.

●

You may occasionally notice light knock-

ing for a short time while accelerating or

Fuel information

You must only use unleaded gaso-
line.

Select premium unleaded gasoline
with an octane rating of 91
(Research Octane Number 96) or
higher required for optimum
engine performance and fuel econ-
omy.
If the octane rating is less than 91,
damage to the engine may occur
and may void the vehicle warranty.

At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A..

A

B

C

340

8-1. Specifications

driving uphill. This is normal and there is

no need for concern.

NOTICE

■

Notice on fuel quality

●

Do not use improper fuels. If improper

fuels are used, the engine will be dam-

aged.

●

Do not use leaded gasoline.

Leaded gasoline can cause damage to

your vehicle’s three-way catalytic con-

verters causing the emission control

system to malfunction.

●

Do not use gasohol other than the type

previously stated.

Other gasohol may cause fuel system

damage or vehicle performance prob-

lems.

●

Using unleaded gasoline with an

octane number or rating lower than

the level previously stated may cause

persistent heavy knocking.

At worst, this may lead to engine dam-

age and will void the vehicle warranty.

■

When refueling with gasohol

Take care not to spill gasohol. It can dam-

age your vehicle’s paint.

■

Fuel-related poor driveability

If poor driveability (poor hot starting,

vaporization, engine knocking, etc.) is

encountered after using a different type

of fuel, discontinue the use of that type of

fuel.

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

Full-size tire

Tire size (



P.343)

DOT and Tire Identification Number (TIN) (



P.342)

Location of treadwear indicators (



P.263)

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.

Radial tires or bias-ply tires

A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.

Load limit at maximum cold tire inflation pressure (



P.345)

Maximum cold tire inflation pressure (



P.345)

This means the pressure to which a tire may be inflated.

Uniform tire quality grading

For details, see “Uniform Tire Quality Grading” that follows.

Summer tires or all season tires (



P.264)

An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.

Tire information

Typical tire symbols

A
B
C
D

E

F

G

H

I

J

342

8-1. Specifications



Compact spare tire

Tire size (



P.343)

DOT and Tire Identification Number (TIN) (



P.342)

Location of treadwear indicators (



P.263)

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.

Load limit at maximum cold tire inflation pressure (



P.345)

Maximum cold tire inflation pressure (



P.345)

This means the pressure to which a tire may be inflated.

“TEMPORARY USE ONLY”

A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its
sidewall. This tire is designed for temporary emergency use only.



Type A

A
B
C
D

E

F

G

H

Typical DOT and Tire Identifica-
tion Number (TIN)

343

8-1. Specifications

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DOT symbol

*

Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Tire size code
Manufacturer’s optional tire type
code (3 or 4 letters)
Manufacturing week
Manufacturing year

*

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.



Type B

DOT symbol

*

Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Manufacturing week
Manufacturing year
Manufacturer’s code

*

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.

■

Typical tire size information

The illustration indicates typical tire
size.

Tire use (P = Passenger car, T =
Temporary use)
Section width (millimeters)
Aspect ratio (tire height to section
width)
Tire construction code (R = Radial,
D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol (alphabet with one
letter)

■

Tire dimensions

Section width
Tire height

A
B
C

D

E

F

G

A
B
C

D

E
F

Tire size

A

B
C

D

E
F

G

A
B

344

8-1. Specifications

Wheel diameter

Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer

This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.

Your Lexus dealer will help answer any

questions you may have as you read this
information.

■

DOT quality grades

All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.

For example: Treadwear 200 Traction AA
Temperature A

■

Treadwear

The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.

For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.

■

Traction AA, A, B, C

The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.

A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include

Tire section names

Uniform Tire Quality Grading

C

A
B
C
D

E
F

G

H

I

J

K