Fuel Requirements; 6.2L Supercharged And 6.4L Engine; Reformulated Gasoline - Dodge Challenger SRT Includes 392/Hellcat 2016 Owner's Manual

468 STARTING AND OPERATING

FUEL REQUIREMENTS

6.2L Supercharged And 6.4L Engine

These engine are designed to meet all
emissions regulations, provide opti-
mal 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 in these
engines.
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 your dealer imme-
diately. 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 consid-
ering service for the vehicle.

Reformulated Gasoline

Many areas of the country require the use of cleaner
burning gasoline referred to as "Reformulated Gasoline".
Reformulated gasoline contains oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The use of reformulated gasoline is recommended. Prop-
erly blended reformulated gasoline will provide im-
proved performance and durability of engine and fuel
system components.