L Engine (With Automatic Transmission); L Engine (With Manual Transmission); Reformulated Gasoline; Materials Added To Fuel - Dodge CHALLENGER 2021 Owner's Manual

5.7L E (W A
NGINE ITH UTOMATIC
T )
RANSMISSION
Do not use E-85 flex fuel or ethanol blends
greater than 15% in this engine.
This engine is designed to meet all
emissions regulations and provide
satisfactory fuel economy and
performance when using high quality
unleaded gasoline having a posted octane
number range of 87 to 89 as specified by the
(R+M)/2 method. The use of 89 octane "Plus"
gasoline is recommended for optimum
performance and fuel economy.
5.7L E (W M
NGINE ITH ANUAL
T )
RANSMISSION
Do not use E-85 flex fuel or ethanol blends
greater than 15% in this engine.
This engine is designed to meet all
emission regulations, provide optimal
fuel economy and performance when
using high-quality unleaded "Premium"
gasoline having a posted octane number of 91 as
specified by the (R+M)/2 method. The use of 91
or higher octane "Premium" gasoline is required
for this engine.
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.
M A T F
ATERIALS DDED O UEL
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
minimizing engine and fuel system
deposits. When available, the usage of TOP
TIER Detergent gasoline is recommended. Visit
TECHNICAL SPECIFICATIONS
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
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).
337
9