2008 LEXUS RX400H fuel type

TABLE OF CONTENTSIndex
RX400h_U
2
1-1. Hybrid system ............................... 24Hybrid system................................... 24
1-2. Key information ........................... 34 Keys ...................................................... 34
1-3. Opening, closing and locking the doors...................................... 36
Wireless remote control .............. 36
Side doors .......................................... 39
Back door ........................................... 44
1-4. Adjustable components (seats, mirrors,
steering wheel) .......................... 49
Front seats .......................................... 49
Rear seats ........................................... 52
Driving position memory ............. 55
Head restraints................................. 57
Seat belts ........................................... 58
Steering wheel (manually adjustable type) ....... 65
Steering wheel (power-adjustable type)............ 66
Anti-glare inside rear view mirror ................................................ 67
Outside rear view mirrors ........... 68
Roof luggage carrier ..................... 70 1-5. Opening and closing the
windows and moon roof .......... 72
Power windows................................ 72
Moon roof .......................................... 75
1-6. Refueling ........................................ 78 Opening the fuel tank cap........... 78
1-7. Theft deterrent system.............. 83 Hybrid vehicle immobilizer system ............................................... 83
Alarm................................................... 85
Theft prevention labels (U.S.A.) ............................................ 88
1-8. Safety information ...................... 89 Correct driving posture ............... 89
SRS airbags ........................................ 91
Front passenger occupant classification system .................. 103
Child restraint systems ............... 108
Installing child restraints ............... 112
2-1. Driving procedures................... 122 Driving the vehicle ........................ 122
Engine (ignition) switch ................ 131
Transmission ................................... 135
Turn signal lever............................. 136
Parking brake ................................. 137
1Before driving
2When driving

Before driving1
23
RX400h_U
1-1. Hybrid system .................. 24Hybrid system ............................ 24
1-2. Key information ............... 34 Keys ............................................... 34
1-3. Opening, closing and locking the doors ........... 36
Wireless remote control ......... 36
Side doors.................................... 39
Back door .................................... 44
1-4. Adjustable components (seats, mirrors,
steering wheel) .............. 49
Front seats ................................... 49
Rear seats .................................... 52
Driving position memory ........ 55
Head restraints .......................... 57
Seat belts .................................... 58
Steering wheel (manually adjustable type) ...................... 65
Steering wheel (power-adjustable type) ....... 66
Anti-glare inside rear view mirror ......................................... 67
Outside rear view mirrors ...... 68
Roof luggage carrier................ 70 1-5. Opening and closing the
windows and
moon roof ........................ 72
Power windows .......................... 72
Moon roof ................................... 75
1-6. Refueling .......................... 78 Opening the fuel tank cap ..... 78
1-7. Theft deterrent system ... 83 Hybrid vehicle immobilizer system ........................................ 83
Alarm............................................ 85
Theft prevention labels (U.S.A.)...................................... 88
1-8. Safety information........... 89 Correct driving posture ......... 89
SRS airbags ................................. 91
Front passenger occupant classification system............ 103
Child restraint systems ......... 108
Installing child restraints........ 112

80
1-6. Refueling
RX400h_U
Closing the fuel tank capWhen replacing the fuel tank cap,
turn it until one clicking sound is
heard.
After releasing your hand, the cap
will turn slightly to the opposite
direction.
■Fuel types
Use unleaded gasoline. (91 Octane rating [Research Octane Number 96] or
higher)
■Fuel tank capacity
Approximately 17.2 gal. (65 L, 14.3 Imp. gal.)
■Open fuel filler door warning
→ P. 4 0 7
■When the fuel filler door opener is inoperable
The handle can be used to open the fuel filler
door if the fuel filler door cannot be opened
using the inside switch because the battery is
discharged or for any other reason.

138
RX400h_U
2-2. Instrument cluster
Gauges and meters
The units used on the speedometer and the power meter gauge display may
differ depending on the model/type.

The following gauges and meters illuminate when the engine switch is
in the ON position.Power meter
Displays the instantaneous output from the hybrid system in approximate
kilowatts.
Speedometer
Displays the vehicle speed.
Fuel gauge
Displays the quantity of fuel remaining in the tank.
Engine coolant temperature gauge
Displays the engine coolant temperature.
Multi-information display ( →P. 143)
Odometer/trip meter and trip meter reset button
Switches between odometer and trip meter displays. Pushing and holding
the button will reset the trip meter when the trip meter is being displayed.

358
4-3. Do-it-yourself maintenance
RX400h_U■
Engine compartment (type C)
41IGCT NO.510Hybrid system
FuseAmpereCircuit
42WAT E R P U M P10Air conditioning system
43SEAT HTR20Seat heaters
44IGCT NO.2 10Hybrid system
45IGCT NO.310Hybrid system, fuel pump
46IGCT NO.410Emission control system, transaxle
control system, air/fuel control system
FuseAmpereCircuit

433
6-1. Specifications
6
Vehicle specifications
RX400h_U
Fuel
Front electric motor (traction motor)
Rear electric motor (traction motor with all wheel drive models)
Hybrid battery (traction battery)
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal)
Ty p ePermanent magnet synchronous motor
Maximum output123 kW
Maximum torque33.9 kgf•m (333 N•m, 245 ft•lbf)
Ty p ePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque13.2 kgf•m (130 N•m, 95 ft•lbf)
Ty p eNickel-Metal hybrid battery
Vo l t a g e9.6 V/m o du le
Capacity6.5 Ah (3HR)
Quantity30 modules
Overall voltage288 V

443
6-1. Specifications
6
Vehicle specifications
RX400h_U
■Gasoline quality standards
●Automotive manufacturers in the US, Europe and Japan have developed a speci-
fication for fuel quality called World-Wide Fuel Charter (WWFC) that is
expected to be applied worldwide.
●The WWFC consists of four categories that are based on required emission lev-
els. In the US, category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and cus-
tomer satisfaction through better performance.
■Lexus recommends the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid
build-up of engine deposits.
●All gasoline sold in the US contains detergent additives to clean and/or keep
clean intake systems.
■Lexus recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxygen-
ates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many
areas.
Lexus recommends the use of cleaner burning gasoline and appropriately blended
reformulated gasoline. These types of gasoline provide excellent vehicle perfor-
mance, reduce vehicle emissions and improve air quality.
■Lexus does not recommend blended gasoline
●Lexus allows the use of oxygenate blended gasoline where the oxygenate con-
tent is up to 10% ethanol or 15% MTBE.
●If you use gasohol in your Lexus, be sure that it has an octane rating no lower than
87.
●Lexus does not recommend the use of gasoline containing methanol.
■Lexus does not recommend gasoline containing MMT
Some gasoline contains octane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoline that contains MMT. If fuel contain-
ing 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.

444
6-1. Specifications
RX400h_U
NOTICE
■Notice on gasoline quality
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic convert-
ers causing the emission control system to malfunction.
●Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Use of unleaded gasoline with an octane rating lower than 91 may result in gaso-
line engine knocking. Persistent knocking can lead to gasoline engine damage
and should be corrected by refueling with higher octane unleaded gasoline.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If after using a different type of fuel, poor driveability is encountered (poor hot start-
ing, vaporization, engine knocking, etc.), 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.