Fuel Requirements; 3.6L Engine - If Equipped - Jeep Grand Cherokee 2016 Owner's Manual

584 STARTING AND OPERATING
2. This device must accept any interference received,
including interference that may cause undesired op-
eration.
NOTE: Changes or modifications not expressly approved
by the party responsible for compliance could void the
user's authority to operate the equipment.

FUEL REQUIREMENTS

3.6L Engine — If Equipped
This engine is designed to meet all
emissions regulations and provide ex-
cellent 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 your dealer imme-
diately. 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 consid-
ering service for the vehicle.