oil temperature Lexus IS250C 2014 Owner's Manual

420
4-3. Do-it-yourself maintenance
IS250C/350C_U
Engine oilWith 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 five minutes for the oil to drain
back into the bottom of the engine.
Hold a rag under the end and 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.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6

556
6-1. Specifications
IS250C/350C_U
Lubrication system
*: The engine oil capacity is a reference quantity to be used when exchanging.
Warm up and turn off the engine, wait more than 5 minutes, and check the oil
level on the dipstick.
■ Engine oil selection
IS250C
“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 GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting 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.
Oil capacity
(Drain and refill 
reference*)
without filter
with filter
6.2 qt. (5.9 L, 5.2 Imp. qt.)
6.7 qt. (6.3 L, 5.5 Imp. qt.)
Outside temperature

557
6-1. Specifications
6
Vehicle specifications
IS250C/350C_U
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows coldstartability. 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 viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a higher
value) 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
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.

558
6-1. Specifications
IS250C/350C_U IS350C
“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 GF-5 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 viscosity (5W-30 is explained here as an example):
• The 5W in 5W-30 indicates the characteristic of the oil which allows coldstartability. 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 viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
Outside temperature

579
6-1. Specifications
6
Vehicle specifications
IS250C/350C_U■
Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 139.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine

613
Alphabetical index
IS250C/350C_U
Electric power steering ....................... 214
Electronic keyIf the electronic key does not operate properly ............................ 528
Emergency, in case of If a warning message is
displayed ........................................... 500
If the electronic key does not
operate properly ............................ 528
If the engine will not start ............... 524
If the retractable hardtop does not close .................................540
If the shift lever cannot be shifted from P ................................... 526
If the vehicle has a discharged battery.................................................. 532
If the warning buzzer sounds........ 491
If the warning light turns on ............ 491
If you have a flat tire ..........................513
If you lose your keys .........................527
If you think something is wrong................................................... 489
If your vehicle becomes stuck .... 539
If your vehicle has to be stopped in an emergency .........550
If your vehicle needs to be
towed ................................................... 483
If your vehicle overheats................ 536
Emergency flashers Switch ...................................................... 482 Engine
Compartment....................................... 416
Engine switch ......................................... 147
Hood ......................................................... 413
How to start the engine ....................147
Identification number ...................... 553
If the engine will not start................524
Ignition switch ........................................ 147
Overheating ........................................ 536
Engine compartment cover .............. 418
Engine coolant Capacity ................................................ 559
Checking ............................................... 423
Preparing and checking
before winter ....................................233
Engine coolant temperature
gauge......................................................... 161
Engine immobilizer system..................98
Engine oil Capacity ................................................ 556
Checking ...............................................420
Preparing and checking
before winter ....................................233
EPS .............................................................. 214
Event data recorder ............................... 22E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

617
Alphabetical index
IS250C/350C_U
Odometer .................................................. 161
OilEngine oil ............................................... 420
Opener
Fuel filler door ........................................ 95
Hood ......................................................... 413
Trunk ............................................................. 51
Outer foot lights
Outer foot lights................................. 354
Wattage .................................................568
Outside rear view mirrors Adjusting and folding ..........................79
Mirror position memory ..................... 61
Outside temperature display............ 172
Overheating, Engine .......................... 536 Parking assist sensors*...................... 208
Parking brake .......................................... 159
Parking lights
Replacing light bulbs ....................... 468
Switch.........................................................176
Wattage ................................................. 568
PCS ............................................................ 222
Personal lights Switch...................................................... 355
Power outlet..............................................371
Power windows ........................................82
Pre-collision system............................. 222
Radar cruise control............................. 194
Radiator .................................................... 425
Radio*........................................................ 256
RDS* ..........................................................258
Rear turn signal lights
Replacing light bulbs ....................... 468
Wattage ................................................. 568
Rear view mirror Compass............................................... 384
Rear window defogger* ..................... 251
Replacing Electronic key battery ......................449
Fuses.......................................................... 451
Light bulbs ............................................ 468
Tires ........................................................... 513
Reporting safety defects for U.S. owners ..........................................592
Retractable hardtop ...............................86OP
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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