Page 214 of 552
214
PRIUS c_U (OM52E68U)
4-4. Refueling
●Vehicles without a smart key system:
Turn the engine switch off and ensure that all the doors and win-
dows are closed.
Vehicles with a smart key system:
Turn the “POWER” switch off and ensure that all the doors and win-
dows are closed.
● Confirm the type of fuel.
■Fuel types
Unleaded gasoline (Octane rating 87 [Research Octane Number 91] or
higher)
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
Page 371 of 552

3717-1. Maintenance and care
7
Maintenance and care
PRIUS c_U (OM52E68U)
NOTICE
■Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-
hol
● Do not use polish wax or polish cleaner. The instrument panel's or other
interior part's painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, pl astic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
■ Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.
■ Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires. Use a cloth dampened
with lukewarm water to gently wipe the window clean. Wipe the window in
strokes running parallel to the heater wires.
● Be careful not to scratch or damage the heater wires.
Page 492 of 552
4929-1. Specifications
PRIUS c_U (OM52E68U)■
Engine number
The engine number is stamped
on the engine block as shown.
Engine
Model
1NZ-FXE
Type 4-cylinder in line, 4-cycle, gasoline
Bore and stroke 2.95 3.33 in. (75.0 84.7 mm)
Displacement 91.3 cu.in. (1497 cm3)
Valve clearance
(engine cold) Intake: 0.006
0.010 in. (0.15 0.25 mm)
Exhaust: 0.010 0.014 in. (0.25 0.35 mm)
Fuel
Fuel type Unleaded gasoline only
Octane rating87 (Research octane number 91) or higher
Fuel tank capacity
(Reference)9.5 gal. (36 L, 7.9 Imp. gal.)
Electric motor (traction motor)
Type
Permanent magnet synchronous motor
Maximum output 45 kW
Maximum torque 125 ft•lbf (169 N•m, 17.2 kgf•m)
Page 494 of 552

4949-1. Specifications
PRIUS c_U (OM52E68U)
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 label:
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark
is added to some oil containers
to help you select the oil you
should use.
Cooling system
Capacity Gasoline engine
Power control unit 5.6 qt. (5.3 L, 4.7 Imp. qt.)
1.7 qt. (1.6 L, 1.4 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• A 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.
Page 501 of 552
5019-1. Specifications
9
Vehicle specifications
PRIUS c_U (OM52E68U)
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related poor driveability
If poor driveability is encountered after us ing a different type of fuel (poor
hot starting, vaporization, engine knocking, etc.), discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle's paint.
Page 552 of 552
552
PRIUS c_U (OM52E68U)
GAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 382 P. 214
Hood lock release
leverFuel filler
door openerTire inflation pressure
P. 382 P. 214P. 4 9 7
Fuel tank capacity
(Reference)9.5 gal. (36 L, 7.9 Imp. gal.)
Fuel type
P. 214, 492
Cold tire inflation
pressure P. 4 9 7
Engine oil capacity
(Drain and refill —
reference) P. 493
Engine oil type
“Toyota Genuine Motor Oil” or equivalent
P. 493