Page 595 of 777
5947-3. Do-it-yourself maintenance
RX350/RX350L_U
Engine compartment
Washer fluid tank ( P. 603)
Engine oil filler cap ( P. 596)
Engine oil level dipstick (P. 595)
Engine coolant reservoir (P. 598) Battery
( P. 601)
Brake fluid reservoir ( P. 600)
Fuse box ( P. 625)
Radiator ( P. 599)
Condenser ( P. 599)
Electric cooling fans1
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3
4
5
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8
9
10
Page 596 of 777
5957-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U
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. Afte r warming up the engine and turning
off the engine, 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
Normal
Excessive
The shape of the dipstick may dif-
fer depending on the type of vehi-
cle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
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5
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Page 597 of 777

5967-3. Do-it-yourself maintenance
RX350/RX350L_U
■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
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
Engine oil selection P. 701
Oil quantity (Low Full)1.9 qt. (1.8 L, 1.6 Imp. qt.)
ItemsClean funnel
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2
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Page 598 of 777

5977-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U
■After changing the engine oil
The engine oil maintenance data should be reset. Perform the following procedures:
Select on the multi-information display. ( P. 97)
Press or of the meter control switch, select the “Vehicle Settings” then “Oil
Maintenance”. (To conf irm setting, press .)
Select the “Yes” and push .
A message is displayed on th e multi-information display.
WARNING
■Used engine oil
●Used engine oil contains potentially harm ful contaminants which may cause skin dis-
orders such as inflammation and skin cance r, 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 sa fe and acceptable manner. Do not dispose of
used oil and filters in household trash, in sewers or onto the ground. Call your Lexus
dealer, service station or auto parts store for information concerning recycling or dis-
posal.
●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 fille r cap is properly tightened.
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Page 701 of 777
7009-1. Specifications
RX350/RX350L_U
■Engine number
The engine number is stamped on
the engine block as shown.
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level
on the dipstick.
Engine
Model3.5 L 6-cylinder (2GR-FKS)
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 3.27 in. (94.0 83.0 mm)
Displacement210.9 cu. in. (3456 cm3)
Valve clearance (engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or higher
Fuel tank capacity (Reference)19.2 gal. (72.5 L, 15.9 Imp. gal.)
Lubrication system
Oil capacity
(Drain and refill - reference
*)
With filterVehicles with towing package
5.8 qt. (5.5 L, 4.8 Imp. qt.)
Vehicles without towing package
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Without filter5.6 qt. (5.3 L, 4.7 Imp. qt.)