Do Not Use E-85 In Non-Flex Fuel; Vehicles; Cng And Lp Fuel System Modifications; Methylcyclopentadienyl Manganese Tricarbonyl (Mmt) In Gasoline - Dodge CHALLENGER 2021 Owner's Manual

338 TECHNICAL SPECIFICATIONS
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
Propane (LP) may result in damage to the
engine, emissions, and fuel system
-F F
LEX UEL
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.
LP F S
UEL YSTEM
M
ETHYLCYCLOPENTADIENYL
M T
ANGANESE RICARBONYL
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
gasoline pump; therefore, you should ask your
gasoline retailer whether the gasoline contains
MMT. MMT is prohibited in Federal and
California reformulated gasoline.
(MMT) I
N