E-85 Usage In Non-Flex Fuel Vehicles; Cng And Lp Fuel System Modifications; Mmt In Gasoline; Fuel System Cautions - Alfa Romeo 4C Owner's Manual

256 TECHNICAL SPECIFICATIONS

E-85 Usage In Non-Flex Fuel Vehicles

Non-Flex Fuel Vehicles (FFV) are compatible with gaso-
line containing up to 10% ethanol (E-10). Gasoline with
higher ethanol content may void the New Vehicle
Limited Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symp-
toms:
• Operate in a lean mode.
• OBD II "Malfunction Indicator Light" on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion.

CNG And LP Fuel System Modifications

Modifications that allow the engine to run on com-
pressed 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 manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty.

MMT In Gasoline

Methylcyclopentadienyl
(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 perfor-
mance in some vehicles. The manufacturer recom-
mends 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.

Fuel System Cautions

CAUTION!
Follow these guidelines to maintain your vehicle's
performance:
• The use of leaded gasoline is prohibited by Fed-
eral law. Using leaded gasoline can impair engine
Manganese Tricarbonyl
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