2017 LEXUS LS600H engine

6157-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically
start, or the cooling fan may suddenly operate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught, resulting in
serious injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too quickly can cause damage to the hybrid
system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
●Do not loosen the coolant reservoir caps
while the hybrid system and radiator are
hot.
High temperature steam or coolant could
spray out.

621
8
8-1. Specifications
Vehicle specifications
LS600h/LS600hL_EE(OM50G20E)
■Vehicle identification number
The vehicle identification number (V IN) is the legal identifier for your
vehicle. This is the primary identification number for your Lexus. It is
used in registering the ownership of your vehicle.
This number is stamped on the top left of the instrument panel and in
the engine compartment.
This number is also on the manu-
facturer’s label.
■Engine number
The engine number is stamped
on the engine block as shown.
Vehicle identification

6228-1. Specifications
LS600h/LS600hL_EE(OM50G20E)
Engine
Model2UR-FSE
Type8-cylinder V type, 4-cycle, gasoline
Bore and stroke94.0  89.5 mm (3.70  3.52 in.)
Displacement4969 cm3 (303.2 cu. in.)
Valve clearance
(engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel type
EU area:
Premium unleaded gasoline conforming to European
standard EN228 only
Except EU area:
Premium unleaded gasoline only
Research Octane Num-
ber95 or higher
Fuel tank capacity
(Reference)84 L (22.2 gal., 18.4 Imp. gal.)

6248-1. Specifications
LS600h/LS600hL_EE(OM50G20E)
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more than 5
minutes, and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Lexus rec-
ommends the use of approved “Toyota Genuine Motor Oil”. Another
motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Lubrication system
Oil capacity
(Drain and refill—reference*)
With filter
Without filter
9.0 L (9.5 qt., 7.9 Imp. qt.)
8.4 L (8.9 qt., 7.4 Imp. qt.)

625
8
8-1. Specifications
Vehicle specifications
LS600h/LS600hL_EE(OM50G20E)
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Lexus vehicle at manufacturing,
and the best choice for good fuel
economy and good starting in
cold weather.
If SAE 0W-20 oil is not available,
SAE 5W-30 oil may be used.
However, it should be replaced
with SAE 0W-20 at the next oil
change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures, the
engine may become difficult to
start, so SAE 0W-20 or 5W-30
engine oil is recommended.
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 viscosity 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 conditions.
Temperature range anticipated
before next oil change.
Preferred

627
8
8-1. Specifications
Vehicle specifications
LS600h/LS600hL_EE(OM50G20E)
Cooling system
Gasoline engine
Power control unit
Left-hand drive
vehicles
Right-hand drive
vehicles
Capacity11.1 L (11.7 qt.,
9.8 Imp. qt.)
2.6 L (2.7 qt.,
2.3 Imp. qt.)
2.5 L (2.6 qt.,
2.2 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
MakeDENSO FK20HBR11
Gap1.1 mm (0.043 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

6328-1. Specifications
LS600h/LS600hL_EE(OM50G20E)
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to
10%. Make sure that the ethanol blended gasoline to be used has a Research
Octane Number that follows the above.
■If your engine knocks
●Consult any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
●You may occasionally notice light knocking for a short time while accelerating or
driving uphill. This is normal and there is no need for concern.
Fuel information
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select premium unleaded gasoline wi th a Research Octane Number of
95 or higher for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select premium unleaded gasoline wi th a Research Octane Number of
95 or higher for optimum engine performance.

633
8
8-1. Specifications
Vehicle specifications
LS600h/LS600hL_EE(OM50G20E)
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 will cause the three-way catalytic converter to lose its effective-
ness and the emission control system to function improperly.
●Do not use the methanol blended gasoline such as M15, M85, M100.
The use of gasoline containing methanol may cause engine damage or failure.
●EU area: Bioethanol fuel sold under names such as “E50” or “E85” and fuel con-
taining a large amount of ethanol should not be used. The use of these fuels will
damage the vehicle’s fuel system. In case of any doubt, ask any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
●Except EU area: Bioethanol fuel sold under names such as “E50” or “E85” and
fuel containing a large amount of ethanol should not be used. Your vehicle can
use gasoline mixed with 10% max ethanol. The use of fuel with more than 10%
ethanol content (E10) will damage the vehicle’s fuel system. You must ensure that
refueling is carried out only from a source where fuel specification and quality
can be guaranteed. In case of any doubt, ask any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.