LEXUS RCF 2018 Owners Manual

5418-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Engine oil selection (RC350/RC300 AWD)
“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-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good start-
ing 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.
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 be fore the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscos ity 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 ve hicle is operated at high speeds, or
under extreme lo ad conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use. Outside temperature

542 8-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Engine oil selection (RC300)
“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-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good start-
ing 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.
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 be fore the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscos ity 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 ve hicle is operated at high speeds, or
under extreme lo ad conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use. Outside temperature

5438-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Engine oil selection (RC F)
“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-5 multigrade engine oil
Recommended viscosity: SAE 5W-30
SAE 5W-30 is the best choice for
good fuel economy and good start-
ing in cold weather.
If SAE 5W-30 is not available, SAE
10W-30 oil may be used. However,
it should be replaced with SAE 5W-
30 at the next oil change.
Oil viscosity (5W-30 is explained here as an example):
• The 5W in 5W-30 indicates the charact eristic of the oil which allows cold
startability. Oils with a lower value be fore the W allow for easier starting of
the engine in cold weather.
• The 30 in 5W-30 indicates the viscos ity 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 ve hicle is operated at high speeds, or
under extreme lo ad conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use. Outside temperature

544 8-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)* : The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
■
Spark plugCooling system Capacity
* RC350/
RC300
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.)
RC F 12.2 qt. (11.5 L, 10.1 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system RC350/RC300
AWD RC300 RC F
Make DENSO
FK20HBR8 NGK
DILFR7K9G DENSO
FK20HBR-J8
Gap 0.031 in. (0.8 mm) 0.035 in. (0.9 mm) 0.031 in. (0.8 mm)
NOTICE ■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

5458-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)* : The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.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.
Automatic transmission Fluid capacity
* RC350 10.0 qt. (9.5 L, 8.4 Imp. qt.)
RC350AWD/RC300
AWD 10.6 qt. (10.0 L, 8.8 Imp. qt.)
RC300 9.2 qt. (8.7 L, 7.7 Imp. qt.)
RC F 11.8 qt. (11.2 L, 9.9 Imp. qt.)
Fluid type Toyota Genuine ATF WS
NOTICE ■
Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately 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

546 8-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC350/RC300 (vehicles without LS D [Limited Slip Differential])
RC350/RC300/RC F (vehicles with LSD [Limited Slip Differential])
RC F (vehicles with TVD [Tor que Vectoring Differential])
* 1
: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
* 2
: Torque transfer modules are located on the ri ght and left sides of the rear differential
unit.
* 3
: Using torque transfer module fluid other than “Toyota Genuine ATF WS” may cause
deterioration of performance, vibration, or ultimately damage the TVD system of your
vehicle.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
* 1
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
* 1
Differential
Torque transfer module
* 2
Oil capacity 1.42 qt. (1.35 L, 1.19 Imp. qt.) Left-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Right-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Oil type and viscos-
ity Toyota Genuine Differential
Gear Oil LT
75W-85 GL-5 or equiva-
lent
* 1
Toyota Genuine ATF WS
* 3

5478-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)* 1
: Minimum pedal clearance when depressed wi th a force of 112.4 lbf (500 N, 51.0 kgf)
while the engine is running.
* 2
: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N, 30.6 kgf)Brakes Pedal clear-
ance
* 1
RC350 4.3 in. (108 mm) Min.
RC350AWD/RC300
AWD 4.5 in. (115 mm) Min.
RC300 4.1 in. (104 mm) Min.
RC F 4.4 in. (112 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)
Parking brake pedal travel
* 2
8 - 11 clicks
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)

548 8-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC350/RC300 (type A) 
RC350/RC300 (type B)Tires and wheels Tire size 235/45R18 94Y, T155/70D17 110M (spare)
Tire inflation pressure
(Recommended 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 94Y, T145/70D18 107M (spare)
Tire inflation pressure
(Recommended 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)

5498-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC350/RC300 (type C) 
RC350/RC300 (type D) Tire size P235/45R18 94V, T155/70D17 110M (spare)
Tire inflation pressure
(Recommended 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 P235/45R18 94V, T145/70D18 107M (spare)
Tire inflation pressure
(Recommended 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)

550 8-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC350/RC300 (type E) 
RC350/RC300 (type F) Tire size 235/40R19 96V, T155/70D17 110M (spare)
Tire inflation pressure
(Recommended 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 96V, T145/70D18 107M (spare)
Tire inflation pressure
(Recommended 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)