2012 Lexus LFA engine oil

69
Using the meter
Checking and topping up the oil level
The LFA uses a dry-sump oil system to circulate the engine oil between the
engine and the oil tank. Therefore, depending on the conditions, the level of oil
in the oil tank can vary greatly.
Cautions when checking the oil level
• In order to attain the most accurate
m e a s u r e m e n t , l e a v e t h e e n g i n e
running after driving and check the
oil level while the engine is idling. The
oil level will take time to stabilize if the
engine is stopped and started again.
• As the engine oil level in the oil tank
va r i e s d e p e n d i n g o n t h e d r i v i n g
condition of the vehicle immediately
before measurement, the results may
vary even if the overall oil amount is
constant.
MAX
MIN
Cautions when topping up the oil level
• Ensure that the oil level does not fall below the MIN marking.
• The space between the MAX and MIN markings represents approximately
2.1 qt. (2.0 L, 1.8 Imp. qt.). While the oil may be topped up as required, never
add more than 0.5 qt. (0.5 L, 0.4 lmp. qt.) at one time.
• Even if the oil level is below the MAX mark, do not add more oil than
necessary.
Oil level gauge
• The oil level gauge installed on the oil tank is for oil changes. Do not use it to
check the current oil level.

110
Engine
Engine Type1LR-GUE
No. of Cyls. & Arrangement 10-cylinders, 72°V type
Valve Mechanism 40-valve DOHC, Rocker Arm Type
Bore x Stroke 88.0 mm x 79.0 mm
Displacement 4,805 cm
3
Compression Ratio12.0:1
Spark Plug Type
*1PK22HTBR-L8 (DENSO)
Engine Oil “Mobil 1 5W-50” API SM or SN
Engine Oil Capacity
*2Single Oil Cooler 13.5 L (14.2 qt., 11.9 Imp. qt.)
Twin Oil Cooler 14.5 L (15.3 qt., 12.8 Imp. qt.)
Lubrication Type Dry Sump
Coolant Type Super Long Life Coolant
Coolant Capacity 25.5 L (26.9 qt., 22.4 Imp. qt.)
Max. Output (SAE-NET) 412 kW (560 PS) 8,700 rpm
Max. Torque (SAE-NET) 480 Nm (48.9 kgf•m) 7,000 rpm
Maximum Engine Speed 9,000 rpm
*1: The spark plugs have been developed exclusively for the 1LR-GUE engine.*2: The figure shown is the total amount of oil contained in the engine, and not the amount of oil required for an oil change.

Engine powerband (Internal measurement)
Engine speed (rpm)
Power (kW)
Torque (Nm)
2,000
450
400
350
300
250
200
150
100
50
0 4,000 6,000 8,000 10,000 500
400
300

111
Technical information
Clutch and Transaxle
ClutchTypeDry Single-Plate Clutch
Diaphragm Spring
Operation Hydraulic Cylinder
Clutch Cover TypeDiaphragm Spring Turnover
Clutch Disc Diameter 240 mm
Transaxle Type ASG
(Automated Sequential Gearbox)
Transaxle Model RB60M
Front Counter Gear Ratio* 1.259
Transaxle Gear Ratios 1st3.231
2nd 2.188
3rd 1.609
4th 1.233
5th 0.970
6th 0.795
Rev 3.587
Differential Gear Ratio 3.417
Differential Type TORSEN
® LSD
Rear Transaxle Gear Oil Oil Viscosity“LT 75W-85” API GL-5
Rear Transaxle Gear Oil Capacity 5.3 L (5.6 qt., 4.7 Imp. qt.)
*: The front counter gear is lubricated by engine oil.

115
Index
Checking the oil level 69
Clock 67
Clutch 37
Clutch disc 37
Cold starting restrictions 17
Combination meter 57
Connecting an external battery
to start the engine 98
Control characteristics
depending on driving mode 23
Control pad 66
Coolant temperature 60
Coolant temperature gauge 60
Crankshaft 38
Creep phenomenon 37
DDark current (parasitic current) 93
Dead battery 94
Default shift speed setting 41
Departure angle 100
Diaphragm spring 37
Differential 39
Differential oil cooler 39
Digital display 56
Disabling the theft deterrent
system 102
Disabling the tilt sensor 102
Discharged battery 94
Disconnecting the negative (-)
battery terminal 99
Door mirror switches 9
Double wishbone front
suspension 47
Downshift 40
Driving mode 58
Driving mode selection 27
Driving mode selector switch 41
Driving mode selector switch
operation 23
Driving mode-linked variable
throttle response 33
Driving position 20
Driving position adjustment 10
Dry single-plate clutch 37
Dual shaft transmission 39
EECB (Electronically
Controlled Brake) 50
Emergency brake 9
Engine 56
Engine code 16
Engine coolant 60
Engine coolant temperature
gauge 60
Engine coolant temperature
sensor 60
Engine limiters 16
Engine oil pressure 62
Engine oil pressure gauge 62
Engine oil temperature gauge 61
Engine overspeed 70
Engine protection mechanisms 16

120
Speed Indicator 67
Speedometer 57, 67
SPORT mode 58
SPORT mode
(control characteristics) 26
SPORT mode (selection) 27
Starting off 11
Starting the engine 9, 1 0
Starting the engine by connecting
an external battery 98
Status 67
Steering 44
Steering adjustment 23
Steering column adjustment 9
Steering column shaft-mounted
EPS (Electric Power Steering)
system 44
Steering rack and gearbox 46
Steering system 44
Steering wheel adjustment 23
Steering wheel adjustment lever 9
Steering wheel adjustment
range 23, 45
Steering wheel position
adjustment 23
Steering wheel shape 45
Steering wheel telescoping range 23
Steering wheel tilt range 23
Stop and go traffic 37
Stopwatch 67 , 72
Suppressing dark current
(parasitic current) 93
Suspension adjustment 47
Suspension geometry 47
Synchronizer rings 39
Synchronizers 39
Synchros 39
TTachometer 59
Telescopic adjustment range 23
Telltale needle 71
Temperature display units
selection 67
TFT LCD panel 56
Throttle body valve opening
angle 33
Throttle response 33, 56
Throttle response adjustment 33
Throttle valve opening angle 33
Tilt and telescopic steering control
lever 9
Tilt range 23
Tilt sensor deactivation 102
Tires (vehicle long-term storage) 92
Tool bag 100
Topping up the oil level 69
Torque tube 38
TORSEN® LSD 39
Tow hook 100
Tow truck selection 100
Towing eyelet 100

121
Index
Transaxle 39
Transaxle oil cooler system 39
Transaxle shaft 38
Transmission 39
Transmission oil cooler 39
Transporting the vehicle 100
Trip Info 67
Trunk 12
Turns lock-to-lock 45
Twin shaft transmission 39
UUpshift 40
Using the floor mats 22
Using the meter 66
VVariable maximum engine speed
during warm-up 17
VDIM control characteristics
(NORMAL) 29
VDIM control characteristics
(SPORT) 29
VDIM (Vehicle Dynamics
Integrated Management) 29
Virtual kingpin axis 47
VSC off switch 9
WWashing the vehicle 78
Waxing the vehicle 81
WET mode 58
WET mode
(control characteristics) 26
WET mode (selection) 27
Wheel center kingpin offset 47
When transporting the vehicle 100
When using a high-pressure
car wash 79
10 individual throttle valves 32
1LR-GUE engine 16