2012 Lexus GS250 oil

6546-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the cor-
rect procedure as given in these sections.
ItemsParts and tools
Battery condition (P. 667)
•Warm water
• Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
• Distilled water
Engine coolant level (P. 665)
•“To y o t a Super Long Life Cool-
ant” or a similar high quality eth-
ylene glycol-based non-silicate,
non-amine, non-nitrite and non-
borate coolant with long-life
hybrid organic acid technology
“Toyota Super Long Life Cool-
ant” is pre-mixed with 50% cool-
ant and 50% deionized water.
• Funnel (used only for adding
coolant)
Engine oil level (P. 662)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (P. 700)• Fuse with same amperage rating
as original

655 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
Light bulbs (P. 722)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 667)
Tire inflation pressure (P. 691)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (P. 671)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
When working on the engine compartment
Keep hands, clothing and tools away from the moving fan and engine
drive belt.
Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately.
If you still experience discomfort, consult a doctor.
ItemsParts and tools

6606-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
Engine compartment
For right-hand drive vehicles:
The battery and the fuse box in front of the battery are located on the oppo-
site side of the engine compartment.
Fuse boxes (P. 700)
Battery (P. 667)
Engine oil level dipstick
(P. 662)
Engine coolant reservoir
(P. 665)Engine oil filler cap
(P. 663)
Washer fluid tank (P. 671)
Electric cooling fans
Condenser (P. 667)
Radiator (P. 667)1
2
3
4
5
6
7
8
9

6626-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)With the engine at operating temperature and turned off, check the
oil level on the dipstick.
Checking the engine oil
Park the vehicle on level ground. After warming up the engine
and turning it off, wait more than 5 minutes for the oil to drain
back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check
the oil level.
Low
Full
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
Type AType B
6

663 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
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 and fre-
quent 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. 1.0 L/1000 km (1.1 qt./600 miles, 0.9 Imp.qt./600
miles)
If your vehicle consumes more than 1.0 L (1.1 qt., 0.9 Imp.qt.) every 1000
km (600 miles), contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Engine oil selectionP. 839, 842, 844
Oil quantity
(Low  Full)1.5 L (1.6 qt., 1.3 Imp.qt.)
Items Clean funnel
1
2
3

6646-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
CAUTION
Used engine oil
Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care should
be taken to avoid prolonged and repeated contact. To remove used engine
oil from your skin, wash thoroughly with soap and water.
Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, service station or auto parts store for information
concerning recycling or disposal.
Do not leave used engine oil within the reach of children.
NOTICE
To prevent serious engine damage
Check the oil level on a regular basis.
When replacing the engine oil
Be careful not to spill engine oil on the vehicle components.
Avoid overfilling, or the engine could be damaged.
Check the oil level on the dipstick every time you refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

7587-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)A buzzer sounds and a warning message is shown on the multi-
information display. The following warning indicates the possibil-
ity of damage to the vehicle that may lead to an accident. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
Stop the vehicle immediately.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
The warning light may come on if the engine
oil pressure is too low.

7667-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Indicates that engine
oil level is lowCheck the level of
engine oil, and add if
necessary.
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice
Clean the sensor.
(If equipped)
Indicates that the radar
sensor is dirty or cov-
ered with ice
Clean the sensor.
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehi-
cle-to-vehicle distance
• Turn off the snow
mode.
• If the windshield
wipers are on, turn
them off or set them
to a mode other than
AUTO or high speed
wiper operation.
Wa r n i n g m e s s a g eDetailsCorrection procedure