2012 TOYOTA PRIUS C octane

107
1-6. Refueling
1
Before driving
■
Fuel types
Unleaded gasoline (Octane rating 87 [Research Octane Number 91] or
higher)
■ Use of ethanol blended gasoline in a gasoline engine
●Make sure that the ethanol blended gasoline to be used has a suitable
Research Octane Number as outlined in “Fuel types”.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than 10%
ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

492 6-1. Specifications
■Engine number
The engine number is stamped
on the engine block as shown.
Engine
Fuel
Electric motor (Traction motor)
Model1NZ-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 type Unleaded gasoline only
Octane rating 87 (Research octane number 91) or higher
Fuel tank capacity
(Reference) 9.5 gal. (36 L, 7.9 Imp. gal.)
Type
Permanent magnet synchronous motor
Maximum output 45 kW
Maximum torque 125 ft•lbf (169 N•m, 17.2 kgf•m)

500
6-1. Specifications
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
■ Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have devel-
oped a specification for fuel quality called the World-Wide Fuel Charter
(WWFC), which is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and improves customer satisfaction through better performance.
■ Recommendation of the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid the build-up of engine deposits.
● All gasoline sold in the U.S.A. contains detergent additives to clean and/
or keep clean intake systems.
You must only use unleaded gasoline in your vehicle.
Select octane rating 87 (Research Octane Number 91) or higher. Use
of unleaded gasoline with an octane rating lower than 87 may result
in engine knocking. Persistent kno cking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

501
6-1. Specifications
6
Vehicle specifications
■
Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
■ Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methyl-
cyclopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If
this happens, contact your Toyota dealer for service.
● Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than 10%
ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

502 6-1. Specifications
■If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
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 using 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.

552
GAS STATION INFORMATION
Fuel filler door openerP. 105Tire inflation pressureP. 498Hood lock release lever P. 360
Auxiliary catch leverP. 360Fuel filler doorP. 1 0 5
Fuel tank capacity
(Reference) 9.5 gal. (36 L, 7.9 Imp. gal.)
Fuel type
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher
Cold tire inflation
pressure
P. 4 9 8
Engine oil capacity
(Drain and refill
 reference)qt. (L, Imp. qt.)
Without filter 3.6 (3.4, 3.0)
With filter 3.9 (3.7, 3.3)
Engine oil type Toyota Genuine Motor Oil or equivalent
Oil grade: P. 493
ILSAC GF-5 multigrade engine oil
Recommended oil viscosity: SAE 0W-20