Fuel Requirements; L Engine; L Engine (With Automatic Transmission); L Engine (With Manual Transmission) - Dodge CHALLENGER 2020 Owner's Manual

FUEL REQUIREMENTS

3.6L E
NGINE
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
excellent fuel economy and performance
when using high-quality unleaded
"Regular" gasoline having an octane rating of 87 as
specified by the (R+M)/2 method. The use of higher
octane "Premium" gasoline will not provide any
benefit over "Regular" gasoline in these engines.
While operating on gasoline with an octane
number of 87, 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 an authorized dealer immediately. Use
of gasoline with an octane number lower than 87
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.
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.
While operating on gasoline with an octane
number of 87, 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 an authorized dealer
immediately. Use of gasoline with an octane
number lower than 87 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.
TECHNICAL SPECIFICATIONS
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.
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 an authorized 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.
311
8