Lexus GS F 2015 Owner's Manuals

451 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30E87E_(EE)
■Removing the engine compartment cover
XGS350/GS200t (Right-hand side)
XGS350/GS200t (Center)
XGS F
Engine compartment cover

4526-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
■Installing the clipsPush up center portion
Insert
Press
1
2
3
NOTICE
■Checking the engine compartment cover after installation
Make sure that the cover is securely installed in its original position.

453 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30E87E_(EE)
With the engine at operating temperature and turned off, check the oil level on
the dipstick.
■Checking the engine oilPark 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.
Engine oil
1
2
XGS350XGS200t
XGS F

4546-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the oil level.
Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or engine.
Wipe the dipstick and reinsert it fully.
3
4
5
1
2
3
XFlat dipstickXNon-flat dipstick
6

455 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30E87E_(EE)
■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.
XGS350XGS200t
XGS F
Engine oil selection →P. 612, 615 , 617
Oil quantity (Low → Full) 1.5 L (1.6 qt., 1.3 Imp.qt.)
Items Clean funnel
1
2
3

4566-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be refilled in between oil
maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine
●If low quality oil or oil of an inappropriate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing, or when driving
while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
■After changing the engine oil (GS350/GS200t)
The engine oil maintenance data should be reset. Perform the following procedures:
Press or of the meter control switch and select .
Press or of the meter control switch and select “Vehicle Settings”. Then press .
Press or of the meter control switch and select “Oil Maintenance”. Then press
.
Select the “Yes” and press .
A message is displayed on the multi-informa-
tion display.
1
2
3
4
5

457 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30E87E_(EE)
WA R N I N G
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin dis-
orders such as inflammation and skin cancer, so care should be taken to avoid pro-
longed 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.

4586-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
The coolant level is satisfactory if it is between the “FULL”/ “F” and “LOW”/ “L”
lines on the reservoir when the engine is cold.
■Engine coolant reservoirReservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW” lin e, add coolant up to the “FULL” line.
( → P. 5 9 6 )
Coolant
1
2
3
XGS350XGS200t
XGS F

459 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30E87E_(EE)
■Intercooler coolant reservoir (GS200t only)Reservoir cap
“F” line
“L” line
If the level is on or below the “L” line,
add coolant up to the “F” line.
( → P. 5 9 6 )
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid
organic acid technology.
“Toyota Super Long Life Coolant” is a mixt ure of 50% coolant and 50% deionized water.
(Minimum temperature: -35 °C [-31 °F])
For more details about coolant, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and water
pump.
If you cannot find a leak, have any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, test the cap and check for leaks in the cooling sys-
tem.
1
2
3
WA R N I N G
■When the engine is hot
Do not remove the engine coolant reservoi r cap, the intercooler coolant reservoir cap
or the coolant inlet cap. ( →P. 6 0 0 )
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

4606-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
Check the battery as follows.
■Caution symbols
The meanings of each caution symbol on the top of the battery are as follows:
Radiator and condenser
WA R N I N G
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries,
such as burns.
Battery
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating instructions
Keep away from childrenExplosive gas