Fuel Requirements; Reformulated Gasoline; Gasoline/Oxygenate Blends; Cng And Lp Fuel System Modifications - Alfa Romeo Giulia 2024 Owner's Manual

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 specified 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.
R G
EFORMULATED ASOLINE
Many areas of the country require the use of cleaner
burning gasoline referred to as "reformulated
gasoline". Reformulated gasoline contains oxygenates
and are specifically blended to reduce vehicle
emissions and improve air quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will provide
improved performance and durability of engine and
fuel system components.
G /O B
ASOLINE XYGENATE LENDS
Some fuel suppliers blend unleaded gasoline with
oxygenates such as ethanol.
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).
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 A LP F S M
ND UEL YSTEM
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 components. Problems that result from
running CNG or LP are not the responsibility of the
manufacturer and not covered under the New Vehicle
Limited Warranty.
M
ETHYLCYCLOPENTADIENYL
T (MMT) I
RICARBONYL
MMT is a manganese-containing metallic additive 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. The manufacturer
recommends that gasoline without MMT be used in
your vehicle. The MMT content of gasoline 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.
M A
ATERIALS DDED
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
ODIFICATIONS
vehicle performance.
Designated TOP TIER Detergent Gasoline
contains a higher level of detergents to
further aide in minimizing 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.
M
ANGANESE
G
N ASOLINE
T F
O UEL
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