2008 Lexus IS F fuel cap

309
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent refilling, have it checked by your Lexus dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.
●Always use a tire pressure gauge.
The appearance of the tire can be misleadi ng. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
●Do not bleed or reduce tire inflation pressure after driving. It is normal for the
tire inflation pressure to be higher after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.

5
When trouble arises
355
5-2. Steps to take in an emergency
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your Lexus dealer as
soon as possible.
■Front passenger detection se nsor and passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound,
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caus ed by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off even
though the flat tire is replaced with the spare tire. Replace the spare tire with the
repaired tire and adjust the proper tire inflation pressure. The tire pressure warning
light will turn off after a few minutes.

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6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
*: Unladen vehicle
Overall length183.4 in. (4660 mm)
Overall width71.4 in. (1815 mm)
Overall height *55.7 in. (1415 mm)
Wheelbase107.4 in. (2730 mm)
Tr e a dFront61.4 in. (1560 mm)
Rear59.6 in. (1515 mm)
Vehicle capacity weight
(Occupants + luggage)660 lb. (300 kg)

401
6-1. Specifications
6
Vehicle specifications
Engine
Fuel
Model2UR-GSE
Ty p e8-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 3.52 in. (94.0  89.5 mm)
Displacement 303.2 cu.in. (4969 cm3)
Drive belt tensionAutomatic adjustment
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity16.9 gal. (64 L, 14.0 lmp.gal)

402
6-1. Specifications
Lubrication system
*: 5W-30 is an oil that provides optimal levels of fuel efficiency.
Oil viscosity
● The 5W portion of the oil viscosity rating 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 30 in 5W-30 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the
vehicle is operated at high speeds, or under extreme load condition.
Oil capacity
(drain and refill)
with filter 9.8 qt. (9.3 L, 8.2 lmp.qt.)
without filter8.7 qt. (8.2 L, 7.2 lmp.qt.)
Oil gradeILSAC multi-grade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the grade and viscosity shown
below.
Outside temperature

418
6-1. Specifications
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning 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 number of occupants speci-
fied 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
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Tire related termMeaning

442
Alphabetical index
First-aid kit storage belt ...................... 251
Floor mat ..................................................250
FluidBrake........................................................290
Washer ................................................... 295
Fog lights Switch ........................................................ 142
Wattage................................................. 408
Foot well lights ....................................... 223
Front fog lights Switch ........................................................ 142
Wattage................................................. 408
Front passenger occupant classification system ........................... 88
Front passenger's seat belt
reminder light......................................353
Front seats Adjustment............................................... 44
Driving position memory.................. 45
Seat position memory ........................ 48
Front turn signal lights Switch ........................................................ 126
Wattage................................................. 408
Fuel Capacity .................................................. 401
Fuel gauge ..............................................128
Fuel pump shut off system ............ 347
Gas station information.................. 452
Information............................................409
Refueling ................................................... 67
Fuel door ..................................................... 67
Fuel filler door ........................................... 67
Fuel pump shut off system ................. 347
Fuses ........................................................... 318 Garage door opener .......................... 254
Gas station information ..................... 452
Gauges ...................................................... 128
Glove box .................................................227
Glove box light ...................................... 228
Head restraints
Adjusting ................................................. 50
Headlight aim......................................... 332
Headlight cleaner...................................146
Headlights Discharge headlights precautions ....................................... 338
Replacing light bulbs ....................... 334
Switch ........................................................ 139
Wattage ................................................. 408
Heaters Seat heaters .............................. 242, 244
Side mirrors............................................ 194
Hill-start assist control ..........................166
Hood .......................................................... 279
Hooks Cargo........................................................ 251
Coat ..........................................................249
Shopping bag ....................................... 251FG
H

452
GAS STATION INFORMATION
Auxiliary catch leverP. 2 7 9Trunk openerP. 4 1Fuel filler door P. 6 7
Hood lock release lever P. 2 7 9Fuel filler door openerP. 6 7Tire inflation pressureP. 4 0 7
Fuel tank capacity16.9 gal. (64 L, 14.0 lmp.gal.)
Fuel typeUnleaded gasoline only P. 68, 401
Cold tire inflation
pressureP. 4 0 7
Engine oil capacity
(Drain and refill)qt. (L, Imp.qt.)
With filter 9.8 (9.3, 8.2)
Without filter 8.7 (8.2
, 7. 2)
Engine oil type
Toyota Genuine Motor Oil or equivalent
Oil grade: ILSAC multigrade engine oil P. 402
Recommended oil viscosity: SAE 5W-30