2012 Lexus LFA engine

368
6-1. Specifications
Fuel information
Your vehicle must use only unleaded gasoline.
Premium unleaded gasoline with an octane rating of 91 (Research Octane
Number 96) or higher is required for optimum engine performance.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only
accommodates 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., Europe and Japan have developed a
specification for fuel quality called the World-Wide Fuel Charter (WWFC),
which is expected to be applied worldwide.
●The WWFC consists of four categories 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.
■Recommendation of the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to
avoid the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains detergent additives to clean and/or keep
clean intake systems.

369
6-1. Specifications
6
Vehicle specifications
■Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxygen-
ates such as ethanol or MTBE (Methyl Te rtiary 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.
■Non-recommendation of the use of 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 vehicle, be sure that it has an octane rating no lower
than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methylcyclo-
pentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoli ne that contains MMT. If fuel contain-
ing 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.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.

370
6-1. Specifications
NOTICE
■Notice on fuel quality
●Do not use any fuel other than that specified. 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 the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance problems.
■Fuel-related poor driveability
If poor driveability is encountered after using a different type of fuel (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.

377
6-1. Specifications
6
Vehicle specifications
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-
sure Tire 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 equipp
ed, air conditioning and
additional weight optional engine
Maximum inflation pres-
sure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight 150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
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

386
6-3.Initialization
Items to initialize
The following items must be initialized for normal system operation in cases
such as after maintenance is performed on the vehicle.
ItemWhen to initializeReference
Oil maintenance After changing engine oil P. 132
Tire pressure warning
system When changing the tire inflation pres-
sure by changing traveling speed.
P. 2 7 1

404
Alphabetical index
CleaningExterior ................................................... 228
Interior ..................................................... 235
Seat belts................................................ 236
Clock .......................................................... 148
Condenser ............................................... 261
Control pad .............................................. 125
Cooling system Engine overheating ............................351
Current fuel consumption.................. 132
Customizable features ...................... 383
Daytime running light system ........... 159
Defogger Rear window ..........................................201
Side mirror ..............................................201
Dimension*
2
Dinghy towing ......................................... 183
Discharge headlights Discharge headlight precautions ...................................... 300
Replacing light bulbs........................ 299
Switch ....................................................... 158
Wattage.................................................. 367
Display Menu display.......................................... 124
Rear view monitor system...............163
Trip information ..................................... 118
Warning message............................. 322
Do-it-yourself maintenance ............. 247 Door courtesy lights
Door courtesy lights .........................207
Wattage ..................................................367
Door pockets ........................................... 212
Doors Door lock ......................................... 22, 25
Door windows ........................................46
Side mirrors.............................................. 43
Down light ............................................... 207
Driver's seat belt reminder light ...... 315
Driving Correct posture.................................... 59
Procedures.............................................. 88
Driving mode .......................................... 104
Driving range ............................................ 119
D

405
Alphabetical index
Electric power steering ....................... 166
Emergency, in case ofIf the active rear wing will not operate ....................................... 325
If the engine will not start ............... 343
If the fuel filler door cannot be opened ............................................ 50
If the parking brake cannot be released ....................................... 345
If the rear hatch cannot be opened ....................................................29
If the vehicle has a discharged battery.................................................. 348
If the warning buzzer sounds........ 312
If the warning light turns on ............ 312
If the warning message is displayed .............................................322
If you have a flat tire ........................ 332
If you lose your keys ........................ 344
If you lose your wireless remote control ................................ 344
If you think something is wrong...................................................308
If your vehicle becomes stuck .... 354
If your vehicle has to be stopped in an emergency ......... 355
If your vehicle needs to be towed ................................................... 303
If your vehicle overheats.................. 351 Emergency flashers
Switch.......................................................302
Engine “ENGINE START” switch ...............98
Compartment......................................256
Engine coolant ................................... 260
Engine coolant temperature gauge....................................................... 116
Engine oil pressure gauge ............... 116
Engine oil temperature gauge ....... 116
Engine speed restrictions .................90
Engine starting restrictions............... 181
Hood ....................................................... 250
How to start the engine .....................98
Identification number ...................... 358
Idling with five cylinders.....................90
If the engine will not start................343
Ignition switch .........................................98
Overheating .......................................... 351
Tachometer ......................................... 260
Variable red zone................................. 119
Warning light ........................................ 314
Warning message ................. 324, 327
Engine coolant Capacity .................................................362
Checking .............................................. 260
Coolant type ........................................362
Engine coolant temperature gauge....................................................... 116
Preparing and checking before winter .....................................180E
*2: Refer to “Inside the LFA”.

406
Alphabetical index
Engine coolant temperature gauge......................................................... 116
Engine immobilizer system.................. 53
Engine oil Adding engine oil .............................. 257
Capacity ...................................................361
Checking ............................................... 257
Engine oil consumption..................258
Engine oil pressure gauge ............... 116
Engine oil temperature gauge ....... 116
Oil brand .................................................361
Temperature ......................................... 100
Warning message..................324, 327
Engine oil level ........................................ 132
Engine oil maintenance ....................... 132
Engine oil temperature.......................... 116
EPS .............................................................. 166
Event data recorder ............................. 310 First-aid kit ................................................ 218
Flatbed tow truck.................................. 306
Floor jack ................................................. 253
Floor mats ..................................................215
Fluid
Brake ........................................................262
Washer....................................................264
Front turn signal lights Switch .......................................................... 112
Replacing light bulbs ....................... 299
Wattage ..................................................367
Fuel Capacity ................................................ 360
Fuel gauge ................................................ 116
Fuel pump shut off system ............ 309
Fuel tank cap ...........................................49
Information ........................................... 368
Warning light......................................... 315
Fuel consumption .......................... 118, 132
Fuel filler door Fuel tank.....................................................49
Washer fluid .........................................264
Fuel pump shut off system................. 309
Fuses .......................................................... 287
Gauges Adding engine oil...............................257
Tire pressure.........................................270
Meter ........................................................... 116
Gear changes ......................................... 102
Glove box ................................................. 210F
G