2018 TOYOTA PRIUS PLUG-IN HYBRID engine

7289-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)
■Engine number
The engine number is stamped
on the engine block as shown.
Engine
Model2ZR-FXE
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke80.5  88.3 mm (3.17  3.48 in.)
Displacement1798 cm3 (109.7 cu.in.)
Valve clearanceAutomatic adjustment
Fuel
Fuel type
When you find these types of fuel label at
the gas station, use only the fuel with one of
the following labels.

EU area:
Unleaded gasoline conforming to European
standard EN228 only
Except EU area:
Unleaded gasoline only
Research Octane Number95 or higher
Fuel tank capacity
(Reference)43 L (11.4 gal., 9.5 lmp.gal.)

7309-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)■
Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Park the vehicle on level ground. After warming up the
engine and turning off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 oil is not avail-
able, SAE 5W-30 oil may be
used. However, it should be
replaced with SAE 0W-20 at the
next oil change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become difficult
to start, so SAE 0W-20 or 5W-
30 engine oil is recommended.
Lubrication system
With filter4.2 L (4.4 qt., 3.7 Imp.qt.)
Without filter3.9 L (4.1 qt., 3.4 Imp.qt.)
Temperature range anticipated
before next oil changePreferred

7319-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)
9
Vehicle specifications
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which
allows cold startability. 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 labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designa-
tion by American Petroleum Ins-
titute (API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-
Conserving” means that the oil
has fuel-saving and environ-
mental protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
1
2

7329-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Cooling system
Capacity*
Gasoline
engine6.0 L (6.3 qt., 5.3 Imp.qt.)
Power
control unit1.5 L (1.6 qt., 1.3 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 technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-CY9
Gap0.9 mm (0.035 in.)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

7369-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)
Fuel information
■Use of ethanol blended gasoline in a gasoline engine
Toyota allows the use of ethanol blended gasoline where the ethanol content
is up to 10%. Make sure that the ethanol blended gasoline to be used has a
Research Octane Number that follows the above.
■If your engine knocks
●Consult any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
●You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
When you find these types of fuel label at the gas station, use
only the fuel with one of the following labels.

EU area:
You must only use unleaded gasoline conforming to European
standard EN228.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.

7379-1. Specifications
PRIUS PHV_OM_OM47C99E_(EE)
9
Vehicle specifications
NOTICE
■Notice on fuel quality
● Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use gasoline with metallic additives, for example manganese, iron
or lead, otherwise it may cause damage on your engine or emission con-
trol system.
● Do not add aftermarket fuel additives which contain metallic additives.
● EU area: Bioethanol fuel sold under names such as “E50” or “E85” and
fuel containing a large amount of ethanol should not be used. The use of
these fuels will damage the vehicle’s fuel system. In case of any doubt,
ask any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
● Except EU area: Bioethanol fuel sold under names such as “E50” or “E85”
and fuel containing a large amount of ethanol should not be used. Your
vehicle can use gasoline mixed with 10% max ethanol. The use of fuel
with more than 10% ethanol content (E10) will damage the vehicle’s fuel
system. You must ensure that refueling is carried out only from a source
where fuel specification and quality can be guaranteed. In case of any
doubt, ask any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.
● Do not use the methanol blended gasoline such as M15, M85, M100.
The use of gasoline containing methanol may cause engine damage or
failure.
■ Notice about fuel
 P. 1 1 5

757Alphabetical index
PRIUS PHV_OM_OM47C99E_(EE)
Child-protectors ....................... 280
Cleaning............................ 572, 577
Aluminum wheels .................. 573
Camera sensor ..................... 387
Exterior.................................. 572
Interior ................................... 577
Radar sensor ........................ 386
Seat belts .............................. 580
Water-repellent coating ......... 573
Clock ......................................... 198
Adjustment ............................ 204
Coat hooks ............................... 569
Combination meter .................. 198
Clock adjustment .................. 204
Main display .......................... 215
Multi-information display ....... 223
Warning lights and
indicators ............................ 207
Condenser ................................ 598
Console box ............................. 552
Consumption screen ............... 268
Coolant ..................................... 596
Capacity ................................ 732
Checking ............................... 596
Preparing and checking
before winter....................... 525
Cooling system ........................ 596
Engine overheating ............... 718
Hybrid system overheating ... 720
Cruise control .......................... 422
Dynamic radar cruise
control with full-speed
range .................................. 422
Cup holders .............................. 553
Curtain shield airbags ............... 39
Customizable features ............ 738Daytime running light
system .................................... 366
Deck board ............................... 556
Defogger
Outside rear view mirrors...... 535
Rear window ......................... 535
Windshield ............................ 535
Dimension ................................ 726
Display
BSM (Blind Spot Monitor) ..... 442
Drive information................... 225
Dynamic radar cruise
control with full-speed
range .................................. 422
Energy monitor ............. 226, 265
Head-up display .................... 257
Intelligent Clearance
Sonar.................................. 476
LDA (Lane Departure Alert
with steering control) .......... 411
Main display .......................... 215
Multi-information display ....... 223
Pre-crash warning................. 395
RSA (Road Sign Assist)........ 418
S-IPA (Simple Intelligent
Parking Assist System) ...... 487
Toyota parking assist
sensor................................. 460
Warning messages ............... 680
Do-it-yourself maintenance .... 586
Door courtesy lights................ 548
Location ................................ 548
Wattage ................................ 735D

759Alphabetical index
PRIUS PHV_OM_OM47C99E_(EE)
Emergency brake signal ......... 519
Emergency flashers................. 662
Emergency brake signal ....... 519
Emergency tire puncture
repair kit ................................. 688
Energy monitor ................ 226, 265
Engine
Accessory mode ................... 353
Compartment ........................ 592
Engine switch ........................ 351
Exhaust gas precautions......... 50
Hood ..................................... 589
How to start the hybrid
system ................................ 351
Identification number............. 728
If the hybrid system will not
start..................................... 706
If your vehicle has to be
stopped in an emergency ... 663
Ignition switch
(power switch) .................... 351
Overheating .......................... 718
Power switch ......................... 351Engine coolant ......................... 596
Capacity ................................ 732
Checking ............................... 596
Preparing and checking
before winter....................... 525
Engine oil ................................. 593
Capacity ................................ 730
Checking ............................... 593
Oil pressure warning light ..... 672
Preparing and checking
before winter....................... 525
Engine switch .......................... 351
Auto power off function ......... 353
Changing the power switch
modes................................. 353
If your vehicle has to be
stopped in an emergency ... 663
Starting the hybrid system .... 351
EPS (Electronic Power
Steering)................................. 519
Function ................................ 519
Warning light ......................... 672
EV City mode switch ............... 100
EV driving range ...................... 119
EV mode ..................................... 97
EV/HV mode selection
switch ..................................... 100
Exhaust gas precautions .......... 50