2018 Lexus IS350 Imp. qt.

4747-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Adding engine oil
If the oil level is below or near the lo w 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, or when driving while accel-
erating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
IS350 AWD/IS350/
IS300 AWDIS300
Engine oil selection →P. 588
Oil quantity (Low → Full) 1.6 qt. (1.5 L, 1.3 Imp. qt.)
Items Clean funnel
1
2
3

5889-1. Specifications
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Oil capacity (Drain and refill [Reference*])
*: 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 oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good start-
ing in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20
at the next oil change.
Lubrication system
IS350 (2WD)IS350 AWD/IS300 AWD (AWD)IS300
With filter6.0 qt.
(5.7 L, 5.0 Imp. qt.)6.8 qt.
(6.4 L, 5.6 Imp. qt.)4.9 qt.
(4.6 L, 4.0 Imp. qt.)
Without filter5.8 qt.
(5.5 L, 4.8 Imp. qt.)6.3 qt.
(6.0 L, 5.3 Imp. qt.)4.5 qt.
(4.3 L, 3.8 Imp. qt.)
Outside temperature

5909-1. Specifications
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Cooling system
Capacity*
IS350 AWD/
IS350/IS300
AWD 9.9 qt. (9.4 L, 8.3 Imp. qt.)
IS300
Engine
8.2 qt. (7.8 L, 6.9 Imp. qt.)
Intercooler
3.2 qt. (3.0 L, 2.6 Imp. qt.)
Coolant type
Use either of the following: • “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non- silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid tech-
nology
Do not use plain water alone.
Ignition system (Spark plug)
IS350 AWD/IS350/ IS300 AWDIS300
Make DENSO FK20HBR8 NGK DILFR7K9G
Gap0.031 in. (0.8 mm)0.035 in. (0.9 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Battery
Open voltage at 68°F
(20° C):12.3 V or higher
(Check the voltage 20 minutes after the engine and all
lights are turned off.)
If the voltage is lower than the standard value, charge
the battery.
Charging rates5 A max.

5919-1. Specifications
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specific ation. Please contact your Lexus dealer for
further details.
Automatic transmission
Fluid capacity*
IS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp. qt.)
IS350 AWD/
IS300 AWD
(AWD)
10.6 qt. (10.0 L, 8.8 Imp. qt.)
IS3009.2 qt. (8.7 L, 7.7 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity 0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil type and viscosity
Toyota Genuine Differential gear oil GL-5 or equivalent
Above 0 °F (-18 °C): SAE90
Below 0 °F (-18 °C): SAE80W or SAE80W-90

5929-1. Specifications
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
IS350 AWD/IS350/IS300 AWD/IS300 (vehicles without LSD [Limited
Slip Differential])
IS350 (vehicles with LSD [Limited Slip Differential])
*: Your Lexus vehicle is filled with “Toyota Genu ine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specif ication. Please contact your Lexus dealer
for further details.
*1: Minimum pedal clearance when depressed wi th a force of 112.4 lbf (500 N, 51.0 kgf)
while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N, 30.6 kgf)
Rear differential
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
*
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LX
75W-85 GL-5 or equivalent
*
Brakes
Pedal clearance*12WD4.2 in. (107 mm) Min.
AWD4.7 in. (118 mm) Min.
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel*27 ⎯ 10 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3, or
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 1.2 in. (30 mm)