2015 LEXUS RX450h engine oil

1762-1. Driving procedures
NOTICE■
When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle: ●
Engine stalling●
Short in electrical components●
Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following:●
Brake function●
Changes in quantity and quality of oil and fluid used for the engine, hybrid trans-
mission, etc., and, for AWD models, the rear electric motor (traction motor).●
Lubricant condition for the bearings, susp ension joints (where possible) and the
function of all joints, bearings, etc.

2952-5. Driving information
2
When driving NOTICE■
To prevent water damage
Take all necessary safety measures to ensure that water damage to the hybrid bat-
tery, hybrid system or other components does not occur. ●
Water entering the engine compartment may cause severe damage to the hybrid
system. Water entering the interior may cause the hybrid battery stowed under
the rear seats to short circuit.●
Water entering the hybrid transmission will cause deterioration in transmission
quality. The malfunction indicator may come on, and the vehicle may not be driv-
able.●
Water can wash the grease from wheel bearings, causing rusting and premature
failure, and may also enter the hybrid transmission case, reducing the gear oil’s
lubricating qualities.■
When you drive through water
If driving through water, such as when crossing shallow streams, first check the
depth of the water and the bottom of the riverbed for firmness. Drive slowly and
avoid deep water.■
Inspection after off-road driving ●
Sand and mud that has accumulated around brake discs may affect braking effi-
ciency and may damage brake system components.●
Always perform a maintenance inspection after each day of off-road driving that
has taken you through rough terrain, sand, mud, or water. For scheduled mainte-
nance information, refer to the “Warra nty and Services Guide/Owner’s Manual
Supplement/Schedul ed Maintenance”.

3022-5. Driving information
Winter driving tips Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the ve hicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
● Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Power control unit coolant
• Washer fluid
● Have a service technician inspect the condition of the 12-volt bat-
tery.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the front tires. Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■ Before driving the vehicle
Perform the following accord ing to the driving conditions:
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Check for and remove any exce ss ice or snow that may have
accumulated on the exterior lights, vehicle's roof, chassis, around
the tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.

6424-2. Maintenance
CAUTION■
If your vehicle is not properly maintained
Improper maintenance could result in se rious damage to the vehicle and possible
serious injury or death.■
Handling of the 12-volt battery ●
Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.●
Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.●
12-volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling. (  P. 6 6 4 )

6434-2. Maintenance
4
Maintenance and care General maintenance
Engine compartment Items Check points
Brake fluid Is the brake fluid at the correct level?
(  P. 6 6 2 )
Coolant Is the coolant at the correct level?
(  P. 6 5 9 )
Engine oil Is the engine oil at the correct level?
(  P. 6 5 6 )
Exhaust system There should not be any fumes or
strange sounds.
Radiator/condenser/hoses The radiator and condenser should
be free from foreign objects.
(  P. 6 6 1 )
Wa s h e r f l u i d Is there sufficient washer fluid?
(  P. 663)Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recomme nded that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

6494-3. Do-it-yourself maintenance
4
Maintenance and care Items Pa r t s a n d t o o l s
Engine oil level (  P. 6 5 6 ) • “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (  P. 6 8 9 ) • Fuse with same amperage rating as
original
Tire inflation pressure (  P. 6 7 9 ) • Tire pressure gauge
• Compressed air source
Headlight aim (  P. 7 0 5 ) • Phillips-head screwdriver
Radiator and condenser (  P. 6 6 1 )

Wa s h e r f l u i d (  P. 663) • Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water
or washer fluid)

6504-3. Do-it-yourself maintenance
CAUTIONThe engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions: ■
When working on the engine compartment ●
Make sure that the indicator on the “POWER” switch and the “READY” indicator
are both off.●
Keep hands, clothing and tools away from the moving fans and engine drive belt.●
Be careful not to touch the engine, power control unit, radiator, exhaust manifold,
etc. right after driving as they may be hot. Oil and other fluids may also be hot.●
Do not leave anything that may burn easi ly, such as paper and rags, in the engine
compartment.●
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flam-
mable■
When working near the electric cooling fans or radiator grille
Be sure the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 6 6 1 )■
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in your eyes.
NOTICE■
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air.

6544-3. Do-it-yourself maintenance
Engine compartment
Brake fluid reservoir
(  P. 6 6 2 )
Engine oil filler cap
(  P. 6 5 7 )
Engine oil level dipstick
(  P. 6 5 6 )
Power control unit coolant
reservoir (  P. 6 5 9 )
Fuse boxes (  P. 6 8 9 ) Engine coolant reservoir
(  P. 6 5 9 )
Condenser (  P. 6 6 1 )
Radiator (  P. 6 6 1 )
Electric cooling fans
Power control unit coolant
radiator (  P. 6 6 1 )
Washer fluid tank (  P. 663)