2020 LEXUS RX450H fuel

7019-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
■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-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 vehicle 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

7069-1. Specifications
RX350/RX350L_U
■Gasoline quality
In very few cases, driveabilit y problems may be caused by th e brand of gasoline you are
using. If driveability problems persist, try ch anging the brand of gasoline. If this does not
correct the problem, consult your Lexus dealer.
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have developed a specifi-
cation for fuel quality calle d the World-Wide Fuel Charte r (WWFC), which is expected
to be applied worldwide.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and improves
customer satisfaction th rough better performance.
■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 program.
●Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more informa-
tion on Top Tier Detergent Gasoline and a lis t of marketers, please go to the official
website www.toptiergas.com.
Fuel information
You must only use unleaded gasoline.
Select octane rating 87 (Research Octane Number 91) or higher. Use of
unleaded gasoline with an octane rating lower than 87 may result in engine
knocking. Persistent knocking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications of ASTM
D4814 in the U.S.A.

7079-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
■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. Thes e fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the form ulations allow for reduced vehicle emis-
sions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane ra ting no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoline that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

7089-1. Specifications
RX350/RX350L_U
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic converters
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 problems.
●Using unleaded gasoline with an octane numb er or rating lower than the level previ-
ously stated will cause pe rsistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is encoun-
tered after using a different type of fuel, discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

7169-1. Specifications
RX350/RX350L_U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has no t been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below

763Alphabetical index
RX350/RX350L_U
Flat tire ...................................................... 666
Floor mats ................................................... 28
FluidAutomatic transmission ..................703
Brake ........................................................704
Washer .................................................. 603
Fog lights Replacing light bulbs ....................... 630
Switch...................................................... 260
Front automatic air conditioning system .........................503
Front passenger footwell hooks ..... 554
Front passenger occupant classification system .............................47
Front passenger’s seat belt reminder light ..................................... 656
Front seat heaters................................. 522
Front seats .................................................156 Adjustment ............................................. 156
Cleaning .................................................. 581
Correct driving posture ....................30
Driving position memory ................. 172
Head restraints ...................................... 177
Power easy access system ............. 172
Seat heaters .......................................... 522
Seat position memory........................ 172 Front side marker lights
Light switch........................................... 252
Replacing light bulbs .......................630
Wattage ................................................. 705
Front turn signal lights Replacing light bulbs .......................630
Turn signal lever ................................. 246
Wattage ................................................. 705
Fuel Capacity.................................................700
Fuel gauge ............................................... 86
Information............................................ 706
Refueling ................................................ 269
Type..........................................................700
Fuel filler door.........................................269 Refueling ................................................ 269
When the fuel filler door cannot be opened ..........................272
Fuses.......................................................... 625
F

768Alphabetical index
RX350/RX350L_U
Odometer ................................................ 104
OilEngine oil............................................... 700
Rear differential oil .............................703
Transfer oil .............................................703
Opener Fuel filler door ........................................ 271
Hood ........................................................592
Power back door .................................. 131
Outside rear view mirrors ................. 184 Adjusting and folding........................ 184
Blind Spot Monitor (BSM)............. 313
Linked mirror function when reversing .............................................. 185
Mirror position memory ................... 172
Outside rear view mirror defoggers ............................................ 513
Outside temperature display ............. 86
Overheating ........................................... 692
Paddle shift switches ................. 241, 242
Panic mode ................................................ 121
Panoramic moon roof ......................... 195 Jam protection function ................... 196
Operation ............................................... 195 Parking brake ......................................... 247
Parking brake engaged warning buzzer/message ......... 249
Warning light .......................................655
Parking lights Light switch........................................... 252
Replacing light bulbs .......................630
PCS (Pre-Collision System).............. 281 Warning light .......................................656
Personal lights ....................................... 526
Power back door ...................................130 Touchless power back door.......... 132
Wireless remote control................. 130
Power back door opener and closer .......................................................130
Power easy access system ................. 172
Power outlets ........................................... 551
Power steering (Electric Power Steering system)................................ 378 Warning light .......................................655
Power windows Door lock linked window operation ............................................. 189
Jam protection function................... 188
Operation................................................187
Window lock switch ..........................187
Pre-Collision System (PCS).............. 281 Warning light .......................................656
O
P

769Alphabetical index
RX350/RX350L_U
Radar cruise control (dynamic radar cruise control
with full-speed range) .....................300
Radiator .................................................... 599
Radio.......................................................... 420
Rear automatic air conditioning system ..................................................... 518
Rear Cross Traffic Alert ......................313
Rear Cross Traffic Auto Brake.......350
Rear door sunshades .......................... 554
Rear passengers' seat belt reminder light ..................................... 656
Rear seat Folding down the rear seatbacks ............................................. 157
Rear side marker lights Light switch ........................................... 252
Replacing light bulbs ....................... 630
Rear turn signal lights Replacing light bulbs ....................... 630
Turn signal lever .................................246
Wattage ................................................. 705
Rear view mirror Inside rear view mirror ..................... 182
Outside rear view mirrors .............. 184 Rear window defogger ........................ 513
Rear window wiper .............................. 267
Refueling...................................................269
Capacity.................................................700
Fuel types...............................................700
Opening the fuel tank cap ............ 269
When the fuel filler door cannot be opened ..........................272
Remote Touch
*.....................................496
Replacing Electronic key battery ..................... 623
Fuses ........................................................ 625
Light bulbs.............................................630
Tires ..........................................................666
Windshield wiper inserts ................. 621
Reporting safety defects for U.S. owners ......................................... 738
Resetting the message indicating maintenance is required ................ 585
Rev indicator ............................................. 88
Rev peak ..................................................... 88
R