2012 Lexus LFA oil type

35
Powertrain
LFA_Nurburgring_U
In order to secure lubrication performance that could withstand high lateral accel-
eration, seven independent scavenger pumps were adopted and are located in
both sides of the cylinder head, the front and rear chain case and the crankcase,
pumping the collected engine oil into the air-cooled oil cooler and the oil tank.
Only the oil with a high temperature collected from the crankcase is pumped into
the air-cooled oil cooler, minimizing drops in pressure, which in turn reduces the
pump's driving loss.
The oil tank's construction achieves stable oil circulation even during high lateral
acceleration due to the adoption of a vertically long shape and specially designed
baffle plate.
Within the oil tank, cyclone type gas-liquid separation is performed and air bubbles
are removed from the collected oil. The oil is then sent to the lower part of the oil
tank and supplied to various parts of the engine via the feed pump which is located
on the same horizontal axis as the scavenger pump.
While a similar sequence of circulation is common with the standard package, it
plays a more important role in the Nürburgring Package, which pursues an even
higher level of driving performance.
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36
LFA_Nurburgring_U
The Nürburgring Package has improved the aerodynamic performance of the vehi-
cle’s whole body, so that a high level of handling stability can be acquired during high-
speed driving.
A prepreg hollow CFRP (Carbon Fiber Reinforced Plastics) large-sized front spoiler,
canards and a fixed type large-sized rear wing have been adopted as exclusive exte-
rior equipment. These items increase downforce as well as precisely control airflow,
further improving the LFA’s high driving stability.
Aerodynamics
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50
LFA_Nurburgring_U
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 Ratio 12.0:1
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) 420 kW (571 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 fi gure shown is the total amount of oil contained in the engine, and not the amoun\
t of oil
required for an oil change.




Engine powerband (Internal measurement)
Engine speed (rpm)
Power (kW)
Torque (Nm)
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450
400
350
300
250500
400
300
200
150
100
500 2000 4000 6000 8000 3000 5000 7000 9000 10000
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51
Technical information
LFA_Nurburgring_U
Clutch and Transaxle
ClutchTypeDry Single-Plate Clutch
Diaphragm Spring
Operation Hydraulic Cylinder
Clutch Cover Type Diaphragm 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.
/VS@TQFD@&JOEE


 



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