2008 Lexus IS250 fuel type

TABLE OF CONTENTSIndex
2
1-1. Key information ........................... 20Keys ...................................................... 20
1-2. Opening, closing and locking the doors and trunk .................. 22
Smart access system with push-button start .......................... 22
Wireless remote control .............. 34
Doors.................................................... 37
Trunk...................................................... 41
1-3. Adjustable components (seats, mirrors,
steering wheel) .......................... 44
Front seats .......................................... 44
Driving position memory ............. 46
Seat position memory ................... 49
Head restraints.................................. 51
Seat belts ............................................ 52
Steering wheel (manually adjustable type) ...... 58
Steering wheel (power-adjustable type)............ 59
Anti-glare inside rear view mirror ................................................ 60
Outside rear view mirrors ............ 61 1-4. Opening and closing the
windows and moon roof .......... 64
Power windows................................ 64
Moon roof .......................................... 66
1-5. Refueling ........................................ 69 Opening the fuel tank cap........... 69
1-6. Theft deterrent system............... 72 Engine immobilizer system ......... 72
Alarm.................................................... 74
Theft prevention labels (U.S.A.) ............................................. 76
1-7. Safety information ....................... 77 Correct driving posture ............... 77
SRS airbags ....................................... 79
Front passenger occupant classification system .................... 90
Child restraint sy stems ................. 95
Installing child restraints ............... 98
2-1. Driving procedures................... 108 Driving the vehicle ........................ 108
Engine (ign ition) switch ................ 117
Automatic Transmission ............ 122
Manual Transmission................... 126
Turn signal lever............................. 128
Parking brake ................................. 129
1Before driving
2When driving

Before driving1
19
1-1. Key information ............... 20Keys .............................................. 20
1-2. Opening, closing and locking the doors
and trunk........................ 22
Smart access system with push-button start .................... 22
Wireless remote control ......... 34
Doors ............................................ 37
Trunk .............................................. 41
1-3. Adjustable components
(seats, mirrors,
steering wheel) .............. 44
Front seats ................................... 44
Driving position memory ........ 46
Seat position memory.............. 49
Head restraints ........................... 51
Seat belts ..................................... 52
Steering wheel (manually adjustable type) ..................... 58
Steering wheel (power- adjustable type) ...................... 59
Anti-glare inside rear view mirror ......................................... 60 Outside rear view mirrors........ 61
1-4. Opening and closing the windows and
moon roof ....................... 64
Power windows .......................... 64
Moon roof ................................... 66
1-5. Refueling .......................... 69 Opening the fuel tank cap ..... 69
1-6. Theft deterrent system .... 72 Engine immobilizer system........................................ 72
Alarm............................................. 74
Theft prevention labels (U.S.A.)....................................... 76
1-7. Safety information............ 77 Correct driving posture ......... 77
SRS airbags ................................ 79
Front passenger occupant classification system.............. 90
Child restraint systems ........... 95
Installing child restraints......... 98

70
1-5. Refueling
Closing the fuel tank capWhen replacing the fuel tank cap,
turn it until a 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 (reference)
17.2 gal. (65 L, 14.3 Imp.gal.)
■When the fuel filler door opener is inoperable
The lever 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.

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2-1. Driving procedures
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows
may become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, because the road surface will be especially
slippery.
●Refrain from high speeds when driving on an expressway in the rain, because
there may be a layer of water between the tires and the road surface, preventing
the steering and brakes from operating properly.
■Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recommended to
observe:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake sys-
tem needs bedding-down of the brake shoe s periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
correct fuel. ( P. 4 0 9 )
■Normal characteristics after turning off the engine
Approximately five hours after the engine is turned off, you may hear sound coming
from under the vehicle for several minutes. This is because fuel evaporation leakage
check is performed. It does not indicate a malfunction.

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4-3. Do-it-yourself maintenance
■Engine compartment (type B)
FuseAmpereCircuit
1FR CTRL-B25 AHeadlight high beam, horn
2A/F15 AExhaust system
3ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
4ALT-S7. 5 ACharging system
5STR LOCK25 ASteering lock
6H-LP CLN30 AHeadlight cleaner
7A/C COMP7. 5 AAir conditioning system
8DEICER25 A
9FR CTRL-AM30 AFront fog lights, parking lights, wind-
shield washer
10IG210 AIgnition system
11EFI NO.210 AFuel system, exhaust system
12H-LP R LWR15 AHeadlight low beam (right)
13H-LP L LWR15 AHeadlight low beam (left)

409
6-1. Specifications
6
Vehicle specifications
Engine
Fuel
IS250IS350
Model4GR-FSE2GR-FSE
Ty p e6-cylinder V type,
4-cycle, gasoline6-cylinder V type,
4-cycle, gasoline
Bore and stroke3.27 3.03 in.
(83.0  77.0 mm)3.70  3.27 in.
(94.0  83.0 mm)
Displacement 152.5 cu.in.
(2500 cm3)
210.9 cu.in.
(3456 cm3)
Drive belt tensionAutomatic adjustment
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)

422
6-1. Specifications
■Gasoline quality standards
●Automotive manufacturers in the US, Europe and Japan have developed a
specification 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
levels. In the US, category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and
customer satisfaction th rough 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 de tergent additives to clean and/or keep
clean intake systems.
■Lexus recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reform ulated 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 oc tane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the inst rument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.

423
6-1. Specifications
6
Vehicle specifications
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.
●IS250: Use of unleaded gasoline with an octane rating lower than 91 may result
in engine knocking. Persistent knocking can lead to engine damage and should
be corrected by refueling with higher octane unleaded gasoline.
●IS350: Use of unleaded gasoline with an octane rating lower than 91 may result
in engine knocking and significantly re duced performance. Persistent knocking
can lead to engine damage and should be corrected by refueling with higher
octane unleaded gasoline.
■Fuel-related poor driveability
If after using a different type of fuel, poor driveability is encountered (poor hot start-
ing, vaporization, engine knoc king, 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.