2014 Lexus IS250C fuel

570
6-1. Specifications
IS250C/350C_U
■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 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 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 U.S.A. contains minimum detergent additives to clean
and/or keep clean intake systems, per EPA’s lowest additives concentration pro-
gram.
●Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gasoline and a list of marketers, please go to
the official website www.toptiergas.com.
■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.

571
6-1. Specifications
6
Vehicle specifications
IS250C/350C_U
■Lexus does not recommend blended gasoline
●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 con-
taining 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.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline contain-
ing more than 10% ethanol.(15% ethanol)
(50% ethanol)
(85% ethanol)

572
6-1. Specifications
IS250C/350C_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 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.
●IS250C: 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.
●IS350C: Use of unleaded gasoline with an octane rating lower than 91 may result
in engine knocking and significantly reduced 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 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.

579
6-1. Specifications
6
Vehicle specifications
IS250C/350C_U■
Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 139.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, 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)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
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

614
Alphabetical index
IS250C/350C_U
Floor mat .................................................. 374
FluidBrake........................................................ 425
Washer ...................................................430
Fog lights Switch ....................................................... 180
Wattage................................................. 568
Foot well lights .......................................354
Front fog lights Switch ....................................................... 180
Wattage................................................. 568
Front passenger occupant
classification system ............................ 117
Front passenger's seat belt
reminder light......................................493
Front seats
Adjustment............................................... 55
Driving position memory.................... 61
Seat position memory ........................ 65
Front turn signal lights
Switch ....................................................... 158
Wattage................................................. 568 Fuel
Capacity ................................................555
Fuel gauge ................................................ 161
Fuel pump shut off system ............ 490
Information ........................................... 569
Refueling ................................................... 95
Fuel door ..................................................... 95
Fuel filler door ........................................... 95
Fuel pump shut off system.................490
Fuses ............................................................451
Garage door opener .......................... 378
Gauges ........................................................ 161
Glove box ................................................ 357
Glove box light ...................................... 357
Hands-free system for mobile phone* ............................. 322
Hazard lights Switch...................................................... 482
Head restraints Adjusting .................................................. 67
Headlight aim ......................................... 467
Headlight cleaner.................................. 189F
G
H

617
Alphabetical index
IS250C/350C_U
Odometer .................................................. 161
OilEngine oil ............................................... 420
Opener
Fuel filler door ........................................ 95
Hood ......................................................... 413
Trunk ............................................................. 51
Outer foot lights
Outer foot lights................................. 354
Wattage .................................................568
Outside rear view mirrors Adjusting and folding ..........................79
Mirror position memory ..................... 61
Outside temperature display............ 172
Overheating, Engine .......................... 536 Parking assist sensors*...................... 208
Parking brake .......................................... 159
Parking lights
Replacing light bulbs ....................... 468
Switch.........................................................176
Wattage ................................................. 568
PCS ............................................................ 222
Personal lights Switch...................................................... 355
Power outlet..............................................371
Power windows ........................................82
Pre-collision system............................. 222
Radar cruise control............................. 194
Radiator .................................................... 425
Radio*........................................................ 256
RDS* ..........................................................258
Rear turn signal lights
Replacing light bulbs ....................... 468
Wattage ................................................. 568
Rear view mirror Compass............................................... 384
Rear window defogger* ..................... 251
Replacing Electronic key battery ......................449
Fuses.......................................................... 451
Light bulbs ............................................ 468
Tires ........................................................... 513
Reporting safety defects for U.S. owners ..........................................592
Retractable hardtop ...............................86OP
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
R

621
Alphabetical index
IS250C/350C_U
Warning buzzersBrake system ......................................... 491
Open door .......................................... 493
Seat belt reminder ............................ 493
Warning lights Anti-lock brake system .................. 492
Brake assist system .......................... 492
Brake system ......................................... 491
Charging system ................................. 491
Electric power steering system
warning light ..................................... 492
Low fuel level....................................... 493
Malfunction indicator lamp .......... 492
Master warning light ........................ 493
Open door ........................................... 493
Pre-collision system ......................... 492
Pretensioners ...................................... 492
Seat belt reminder light .................. 493
SRS airbags .......................................... 492
Tire pressure warning
light........................................................ 493
Warning messages
Dynamic radar cruise control ........................501, 503
Engine oil level ....................................503
Engine oil maintenance..................503
Engine oil pressure.......................... 500
Hood .......................................................503
Intuitive parking assist ..........501, 503
Open door ...........................................503
Parking brake ......................................503
Pre-collision system ..............501, 503
Retractable hardtop ..............501, 503 Smart access system with
push-button start ............................. 510
Steering lock.......................................... 501
Trunk ....................................................... 503
Washer fluid ........................................ 503
Washer
Checking .............................................. 430
Preparing and checking before winter ....................................233
Switch........................................................ 182
Washing and waxing ........................... 396
Weight Cargo capacity ................................... 229
Load limits ............................................. 232
Weight.....................................................552
Wheels ...................................................... 445
Window glasses ...................................... 82
Window lock switch ...............................83
Windows Power windows ..................................... 82
Rear window defogger.................... 251
Washer .................................................... 182
Windshield wiper de-icer.................. 252
Windshield wipers................................. 182
Wireless remote control key Replacing the battery.......................449
WMA disc* ...............................................271W
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

623
What to do if...
IS250C/350C_U
A warning light or indicator
light comes onP. 4 9 1If a warning light turns on or a warning
buzzer sounds...
■Warning lights
or or
P. 4 9 1P. 4 9 2
P. 4 9 3
or
P. 4 9 2P. 4 9 3
P. 4 9 3P. 4 9 3
P. 4 9 2P. 4 9 2
P. 4 9 3P. 4 9 2
P. 4 9 1P. 4 9 3
P. 4 9 2
Brake system warning lightMalfunction indicator lamp
“ABS” warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Low fuel level warning lightMaster warning light
SRS warning lightElectric power steering system
warning light
Open door warning lightPre-collision system warn-
ing light
Charging system warning
lightTire pressure warning light
Slip indicator