2010 Lexus GS350 oil viscosity

453
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds, frequent
acceleration and deceleration.
●A new engine consumes more oil.
●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.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 Imp.qt./600 miles (1.0 L per 1000
km). If the vehicle consumes more than this amount, contact your Lexus dealer.
■Resetting the engine oil maintenance data (U.S.A. only)
Perform the following steps:
Press the “DISP” switch (P. 155) to change the multi-information dis-
play to blank.
Turn the “ENGINE START STOP” switch to OFF.
Turn the “ENGINE START STOP” switch to IGNITION ON mode with
the trip meter reset button held down.
Keep pressing the button for longer than 7 seconds after the “ENGINE
START STOP” switch is in IGNITION ON mode.
STEP1
STEP2
STEP3
STEP4
After the above operation, the message
shown in the left will appear on the display.
The master warning light and tone will turn
on. After 5 seconds, the system reset is com-
pleted.

590
6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Lubrication system
GS460
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 5W-20 or 0W-20
SAE 5W-20 or 0W-20 engine oil
may be used. However, SAE 0W-
20 is the best choice for good fuel
economy and good starting in cold
weather.
Oil capacity
Drain and refill
(Reference)
With filter
Without filter

9.1 q t . ( 8 .6 L , 7.6 I m p .q t . )
8.9 qt. (8.4 L, 7.4 Imp.qt.)
Outside temperature

591
6-1. Specifications
6
Vehicle specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
The 0W portion of the oil viscosity rating indicates the characteristic of the oil
which allows cold startability. Oils with a lower value before the W allow for
easier starting of the engine in cold weather.
The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the vehicle
is operated at high speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval Com-
mittee) Certification Mark is added to some oil containers to help you
select the oil you should use.

592
6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
GS350
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 5W-30
SAE 5W-30 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 5W-30 is not available,
SAE 10W-30 oil may be used.
However, it should be replaced
with SAE 5W-30 at the next oil
change.
Oil capacity
Drain and refill
(Reference)
With filter
Without filter
2WD4WD


6.6 qt. (6.3 L, 5.5 Imp.qt.)
6.2 qt. (5.9 L, 5.2 Imp.qt.)

6.7 qt. (6.4 L, 5.6 Imp.qt.)
6.3 qt. (6.0 L, 5.3 Imp.qt.)
Outside temperature

593
6-1. Specifications
6
Vehicle specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
The 5W portion of the oil viscosity rating indicates the characteristic of the oil
which allows cold startability. Oils with a lower value before the W allow for
easier starting of the engine in cold weather.
The 30 in 5W-30 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the vehicle
is operated at high speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval Com-
mittee) Certification Mark is added to some oil containers to help you
select the oil you should use.

595
6-1. Specifications
6
Vehicle specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Electrical system
Differential
Rear differential: “Toyota Genuine Differential Gear Oil” is filled in your
Lexus vehicle at factory fill. Use Lexus approved “Toyota Genuine Differen-
tial Gear Oil” or an equivalent of matching quality to satisfy the above spec-
ification. Please contact your Lexus dealer for further details.
12 volt battery
Open voltage at
68F (20C):12.6  12.8V Fully charged
12.2  12.4V Half charged
11.8  12.0V Discharged
(Voltage is checked 20 minutes after the
engine and all lights are turned off.)
Charging rates5A max.
GS460/
GS350 (2WD)GS350 (4WD)
FrontRear
Oil capacity1.42 qt.
(1.35 L, 1.19 Imp.qt.)0.73 qt.
(0.70 L, 0.61 Imp.qt.)1.42 qt.
(1.35 L, 1.19 Imp.qt.)
Oil type and
viscosity
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
Hypoid gear oil API
GL-5
Above 0°F (-18°C):
SAE 90
Below 0°F (-18°C):
SAE 80W or SAE
80W-90
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent