2021 ALFA ROMEO GIULIA octane

TECHNICAL SPECIFICATIONS

256

ENGINE
2.0L Engine
CycleFour
Number and position of cylinders 4 inline
Piston bore and stroke (mm) 84 / 90
Total displacement (cm³) 1,995
Compression ratio 10:1
Maximum power (SAE) (HP) 280
Maximum power (kW) 209
Corresponding engine speed (RPM) 5,200
Maximum torque (SAE) (ft-lb) 295
Maximum torque (Nm) 400
Corresponding engine speed (RPM) 2,250 – 4,000
Fuel 87 Octane (R+M)/2 Method Minimum,
91 Recommended, ethanol percentage is 0–15%
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257

POWER SUPPLY
2.9L Engine
CycleFour
Number and position of cylinders 6 / V
Piston bore and stroke (mm) 86.5 × 82
Total displacement (cm³) 2,891
Compression ratio 9.3:1
Maximum power (SAE) (kW) 375
Maximum power (SAE) (HP) 505
Corresponding engine speed (RPM) 6,500
Maximum torque (SAE) (Nm) 600
Maximum torque (SAE) (ft. lb) 443
Corresponding engine speed (RPM) 2,500
Fuel 87 Octane (R+M)/2 Method Minimum,
91 Recommended, ethanol percentage is 0–15%
Power Supply
2.0L Engine Electronic timed sequential injection with knock control
Power supply
2.9L EnginePhased sequential electronic injection with knock control and
variable intake valve actuation
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263

FUEL REQUIREMENTS
These engines are designed to meet
all emission regulations, and provide
satisfactory fuel economy and
performance when using
high-quality unleaded “Regular” gasoline
having a posted octane number of 87 as spec -
ified by the (R+M)/2 method. For optimal
performance the use of 91 or higher octane
“Premium” gasoline is recommended in these
engines.
While operating on gasoline with the required
octane number, hearing a light knocking
sound from the engine is not a cause for
concern. However, if the engine is heard
making a heavy knocking sound, see your
dealer immediately. Use of gasoline with a
lower than recommended octane number can
cause engine failure and may void or not be
covered by the New Vehicle Limited Warranty.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesitations.
If you experience these symptoms, try another
brand of gasoline before considering service
for the vehicle.
Reformulated Gasoline
Many areas of the country require the use of
cleaner burning gasoline referred to as “refor -
mulated gasoline”. Reformulated gasoline
contains oxygenates and are specifically
blended to reduce vehicle emissions and
improve air quality. The use of reformulated gasoline is recom
-
mended. Properly blended reformulated gaso -
line will provide improved performance and
durability of engine and fuel system compo -
nents.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline
with oxygenates such as ethanol.
Problems that result from using gasoline
containing more than 15% ethanol (E-15) or
gasoline containing methanol are not the
responsibility of the manufacturer and not
covered under New Vehicle Limited Warranty.
CNG And LP Fuel System Modifications
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
Propane (LP) may result in damage to the
engine, emissions, and fuel system compo -
nents. Problems that result from running CNG
or LP are not the responsibility of FCA US LLC
and not covered under the New Vehicle
Limited Warranty.
Methylcyclopentadienyl Manganese
Tricarbonyl (MMT) In Gasoline
MMT is a manganese-containing metallic addi -
tive that is blended into some gasoline to
increase octane. Gasoline blended with MMT
provides no performance advantage beyond
gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces
spark plug life and reduces emissions system
performance in some vehicles. FCA US LLC
recommends that gasoline without MMT be
used in your vehicle. The MMT content of gaso -
line may not be indicated on the gasoline
pump; therefore, you should ask your gasoline
retailer whether the gasoline contains MMT.
MMT is prohibited in Federal and California
reformulated gasoline.
CAUTION!
DO NOT use E-85, gasoline containing
methanol, or gasoline containing more than
15% ethanol (E-15). Use of these blends
may result in starting and drivability
problems, damage critical fuel system
components, cause emissions to exceed
the applicable standard, and/or cause the
Malfunction Indicator Light to illuminate.
Please observe pump labels as they should
clearly communicate if a fuel contains
greater than 15% ethanol (E-15).
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TECHNICAL SPECIFICATIONS

264

(Continued)
Materials Added To Fuel
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
are recommended. Using gasolines that have
these additives will help improve fuel
economy, reduce emissions, and maintain
vehicle performance.Designated TOP TIER Detergent
Gasoline contains a higher level of
detergents to further aide in mini -
mizing engine and fuel system
deposits. When available, the usage of TOP
TIER Detergent Gasoline is recommended.
Visit
www.toptiergas.com
for a list of TOP TIER
Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish
removal may contain active solvents or similar
ingredients. These can harm fuel system
gasket and diaphragm materials.
Fuel System Cautions

NOTE:

Intentional tampering with the emissions
control system can result in civil penalties
being assessed against you.
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or
ignition malfunctions can cause the cata -
lytic converter to overheat. If you notice a
pungent burning odor or some light
smoke, your engine may be out of tune or
malfunctioning and may require imme -
diate service. Contact an authorized
dealer for service assistance.
The use of fuel additives, which are now
being sold as octane enhancers, is not
recommended. Most of these products
contain high concentrations of methanol.
Fuel system damage or vehicle perfor -
mance problems resulting from the use of
such fuels or additives is not the responsi -
bility of FCA US LLC and may void or not be
covered under the New Vehicle Limited
Warranty.
CAUTION! (Continued)
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