2014 Lexus IS350 engine number

5029-1. Specifications
IS350/250_U (OM53758U)
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level
on the dipstick.
Engine
IS250IS350
Model2.5 L 6-cylinder (4GR-FSE)
engine3.5 L 6-cylinder (2GR-FSE)
engine
Ty p e6-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)
Displacement152.5 cu. in. (2500 cm3)210.9 cu. in. (3456 cm3)
Valve clearance
(engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity
(Reference)17.5 gal. (66.3 L, 14.6 Imp. gal.)
Lubrication system
2WDAW D
With filter6.6 qt. (6.2 L, 5.5 Imp. qt.)6.8 qt. (6.4 L, 5.6 Imp. qt.)
Without filter6.2 qt. (5.9 L, 5.2 Imp. qt.)6.3 qt. (6.0 L, 5.3 Imp. qt.)

5109-1. Specifications
IS350/250_U (OM53758U)
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only accom-
modates the special nozzle on unleaded fuel pumps.
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you are
using. If driveability problems persist, try changing 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., Eu rope and Japan have developed a specifi-
cation for fuel quality called the World-Wi de Fuel Charter (WWFC), which is expected
to be applied worldwide.
●The WWFC consists of four cat egories that are based on required emission levels. In
the U.S., category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and improves
customer satisfaction through better performance.
Fuel information
You must only use unleaded gasoline in your vehicle.
IS250
Select premium unleaded gasoline with an octane rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance. If
91 octane cannot be obtained, you may use unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91). Use of unleaded gasoline
with an octane rating lower than 91 ma y result in engine knocking. Persistent
knocking can lead to engine damage and should be corrected by refueling
with higher octane unleaded gasoline.
IS350
Select premium unleaded gasoline with an octane rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance. If
91 octane cannot be obtained, you may use unleaded gasoline with an octane
rating as low as 87 (Research Octane Number 91). Use of unleaded gasoline
with an octane rating lower than 91 may result in engine knocking and signifi-
cantly reduced performance. Persistent knocking can lead to engine damage
and should be corrected by refueling with higher octane unleaded gasoline.
At minimum, the gasoline you use should meet the specifications of ASTM
D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

5129-1. Specifications
IS350/250_U (OM53758U)
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 da mage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than the level previ-
ously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability is encounte red after using a different type of fuel (poor hot starting,
vaporization, engine knocking, etc.), disc ontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

558Alphabetical index
IS350/250_U (OM53758U)
Emergency flashers ............................. 446
Engine ....................................................... 502Accessory mode................................. 160
Compartment....................................... 401
Engine switch ........................................ 159
Hood ....................................................... 399
How to start the engine ................... 159
Identification number ........................ 501
If the engine will not start............... 485
Ignition switch (engine switch)..... 159
Overheating .........................................494
Engine coolant....................................... 405 Capacity ................................................ 504
Checking............................................... 405
Preparing and checking before winter ....................................254
Engine coolant temperature gauge ..........................................................81
Engine immobilizer system ................. 69
Engine oil ................................................. 402 Capacity ................................................ 502
Checking................................................402
Preparing and checking before winter ....................................254
Engine switch .......................................... 159
Enhanced VSC ..................................... 234
EPS (Electronic Power Steering) ........ 235 Function ..................................................235
Warning light ...................................... 455
Event data recorder (EDR) ...................10 First-aid kit storage belt......................362
Flat tire .......................................................475
Floor mats....................................................26
Fluid
Automatic transmission ................. 505
Brake....................................................... 506
Washer .....................................................410
Fog lights..................................................... 181 Replacing light bulbs ....................... 434
Switch ......................................................... 181
Wattage ................................................ 509
Footwell light .......................................... 356 Wattage ................................................ 509
Front passenger occupant classification system ............................ 47
Front personal lights ............................357 Wattage ................................................ 509
Front seats ................................................. 120 Adjustment..............................................120
Cleaning................................................. 387
Correct driving posture .................... 28
Driving position memory................. 123
Head restraints ..................................... 127
Power easy access system ............. 124
Seat heaters ..........................................355
Seat position memory ....................... 123
Seat ventilators....................................355F

560Alphabetical index
IS350/250_U (OM53758U)
I/M test ..................................................... 396
IdentificationEngine ....................................................... 501
Vehicle ..................................................... 501
Ignition switch (engine switch)......... 159
Illuminated entry system .................... 357
Immobilizer system................................. 69
Indicators .................................................... 78
Initialization Maintenance.......................................... 391
Moon roof ...............................................142
Multi-information display ................. 88
Power windows ................................... 138
Tire pressure warning system..................................412
Initiators (tire pressure warning system).................................. 418
Inside door handle lights ................... 356
Inside rear view mirror .........................132
Instrument panel light control ............ 84
Interior lights........................................... 357 Wattage ................................................. 509
Intuitive parking assist........................... 214
Jack Positioning a floor jack ................... 400
Vehicle-equipped jack ................... 476
Jack handle .................................................. 476
Jam protection function Moon roof ................................................ 141
Power windows ................................... 138 Keyless entry
Smart access system with push-button start.........103, 109
Wireless remote control.......103, 109
Keys .............................................................. 98 Battery-saving function ..................... 115
Electronic key ......................................... 98
Engine switch ........................................159
If the electronic key does not operate properly ....... 488
Key number plate ................................. 98
Keyless entry ........................................... 98
Mechanical key...................................... 99
Replacing the battery .......................427
Warning buzzer...................................104
Wireless remote control................... 98
Knee airbags ..............................................36
I
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568Alphabetical index
IS350/250_U (OM53758U)
Tachometer .................................................81
Tail lights..................................................... 173Light switch .............................................173
Replacing light bulbs ........................ 442
Talk switch
*..............................................321
Telephone switches
*............................321
Theft deterrent system Alarm............................................................. 71
Engine immobilizer system..............69
Luggage security system .................. 110
Theft prevention labels ....................... 73
Tire inflation pressure ......................... 420 Maintenance data ............................. 507
Tire inflation pressure display function ..................................................412
Warning light .......................................457
Tire information ...................................... 513 Glossary ................................................ 520
Size ............................................................. 516
Tire identification number............... 515
Uniform Tire Quality Grading................................................ 518 Tire pressure warning system ........... 412
Function .................................................... 412
Initializing ................................................. 412
Installing tire pressure warning valves and transmitters.................. 412
Registering ID codes ......................... 414
Tire pressure warning reset switch ..................................................... 413
Warning light ....................................... 457
Tires ...............................................................411 Chains ..................................................... 255
Checking ...................................................411
If you have a flat tire .......................... 475
Inflation pressure................................ 507
Information..............................................513
Replacing ............................................... 475
Rotating tires ............................................411
Size ........................................................... 507
Snow tires .............................................. 256
Spare tire................................................ 475
Tire inflation pressure display function.................................................. 412
Tire pressure warning system ....... 412
Warning light ....................................... 457
T