ENGINE
198
SPECIFICATIONS
− GENERAL
Model
Type
Bore and stroke
Displacement
Valve clearance (engine cold)
Intake
Exhaust
Drive belt tension
1UZ−FE
8 cylinder V type, 4 cycle, gasoline
87.5 x 82.5 mm (3.44 x 3.25 in.)
3969 cm
3 (242.1 cu.in.)
0.15 − 0.25 mm (0.006 − 0.010 in.)
0.25 − 0.35 mm (0.010 − 0.014 in.)
Automatic adjustment
− LUBRICATION SYSTEM
Oil capacity
Drain and refill
with filter
without filter
Oil grade
Recommended oil viscosity (SAE):
5.1 L (5.4 qt., 4.5 Imp.qt.)
4.8 L (5.1 qt., 4.2 Imp qt.)
API SH, Energy−Conserving II multigrade engine oil or
ILSAC multigrade engine oil
Temperature range anticipated before next oil change
ENGINE
202The amount of engine oil consumed depends on the
viscosity of the oil, the quality of the oil and the way the
vehicle is driven.
More oil is consumed by high−speed driving and frequent
acceleration and deceleration.
A new engine consumes more oil, since its pistons, piston rings
and cylinder walls have not become conditioned.
When judging the amount of oil consumption, keep in
mind that the oil may have become diluted, making it
difficult to judge the true level accurately.
For example, if a vehicle is used for repeated short trips and
consumes a normal amount of oil, the dipstick may not show
any drop in the oil level at all, even after 1000 km (600 miles)
or more. This is because the oil is gradually becoming diluted
with fuel or moisture, making it appear that the oil level has not
changed.
The diluting ingredients evaporate out when the vehicle is then
driven at high speeds, as on an expressway, making it appear
that oil is excessively consumed after driving at high speeds.
Importance of engine oil level check
One of the most important points in proper vehicle
maintenance is to keep the engine oil at the optimum level so
that oil function will not be impaired. Therefore, it is essential
that the oil level be checked regularly. Lexus recommends that
the oil level be checked every time you refuel the vehicle.
NOTICE
Failure to check the oil level regularly could lead to
serious engine trouble due to insufficient oil.
For detailed information on oil level check, see “Checking the
engine oil level” on page 203.
USED ENGINE OIL
CAUTION
Used engine oil contains potentially harmful
contaminants which may cause skin disorders such
as inflammation or skin cancer, so care should be
taken to avoid prolonged and repeated contact with
it. To remove used engine oil from your skin, wash
thoroughly with soap and water.
Do not leave used oil within the reach of children.
Dispose of used oil and used oil filters only in a safe
and acceptable manner. Do not dispose of used oil
and used oil filters in household trash, in sewers or
onto the ground. Call your Lexus dealer or a service
station for information concerning recycling or
disposal.
