oil viscosity Lexus ES300 1997 Service Procedures And Specifications: Engine

ENGINE
196
SPECIFICATIONS
±GENERAL
Model 1MZ±FE
Type 6 cylinder V type, 4 cycle, gasoline
Bore and stroke 87.5 X 83 mm (3.44 X 3.27 in.)
Displacement 2995 cm
3
(182.7 cu.in.)
Valve clearance (engine cold)
Intake 0.15 ± 0.25 mm (0.006 ± 0.010 in.)
Exhaust 0.25 ± 0.35 mm (0.010 ± 0.014 in.)
Drive belt tension (with Borroughs drive belt tension 115 + 20 lb.
gauge No. BT±33±73F)
±LUBRICATION SYSTEM
Oil capacity
Drain and refill
with filter 4.7 L (5.0 qt., 4.2 Imp.qt.)
without filter 4.5 L (4.8 qt., 4.0 Imp.qt.)
Oil grade API SH, Energy±Conserving II multigrade engine oil or
ILSAC multigrade engine oil
Recommended oil viscosity (SAE):

ENGINE
200The 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 under driving conditions such as high
speeds 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 point 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 ªChecking the
engine oil levelº on page 201.

ENGINE
203
Engine oil selection
Use API SH, Energy±Conserving II multigrade engine oil or
ILSAC multigrade engine oil.
Recommended viscosity (SAE):
SAE 5W±30 is the best choice for your vehicle, for good
fuel economy, and good starting in cold weather.
If you use SAE 10W±30 engine oil in extremely low
temperatures, the engine may become difficult to start,
so SAE 5W±30 engine oil is recommended.
Oil identification marks
API Service SymbolILSAC Certification Mark
Either or both API registered marks are added to some oil
containers to help you select the oil you should use.
The API Service Symbol is located anywhere on the
outside of the container.
The top portion of the label shows the oil quality by API
(American Petroleum Institute) designation such as SH.
The center portion of the label shows the SAE viscosity
grade such as SAE 5W±30. ªEnergy±Conserving II,º
shown in the lower portion, indicates that the oil has fuel±
saving capabilities. Oils marked ªEnergy±Conserving IIº
will have higher fuel±saving capabilities than oils marked
ªEnergy±Conserving.º
The ILSAC (International Lubricant Standardization and
Approval Committee) Certification Mark is displayed on the
front of the container.