Gasoline/Oxygenate Blends; Do Not Use E-85 In Non-Flex Fuel; Vehicles; Cng And Lp Fuel System Modifications - Fiat 500X 2021 Owner's Manual

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312
TECHNICAL SPECIFICATIONS
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.
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 metha-
nol, or gasoline containing more than 15% eth-
anol (E-15). Use of these blends may result in
starting and drivability problems, damage criti-
cal fuel system components, cause emissions
to exceed the applicable standard, and/or
cause the Malfunction Indicator Light to illumi-
nate. 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 may void
or not be covered under New Vehicle Limited
Warranty.
D
N
U
E-85 I
N
O
OT
SE
N
ON
V
EHICLES
Non-Flex Fuel Vehicles (FFV) are compatible
with gasoline containing up to 15% ethanol
(E-15). Use of 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 symptoms:
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 A
ND
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
-F
F
LEX
UEL
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 may void or not be covered
under the New Vehicle Limited Warranty.
M
ETHYLCYCLOPENTADIENYL
M
ANGANESE
G
ASOLINE
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
LP F
S
UEL
YSTEM
T
(MMT) I
RICARBONYL
N

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