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90
TECHNICAL SPECIFICATIONS
Tighten the lug nuts/bolts in a star pattern until
each nut/bolt has been tightened twice. Ensure
that the socket is fully engaged on the lug nut/
bolt (do not insert it halfway).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by an
authorized dealer or service station.
After 25 miles (40 km), check the lug nut/bolt
torque to be sure that all the lug nuts/bolts are
properly tightened.
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the lug nuts/bolts fully
until the vehicle has been lowered. Failure to
follow this warning may result in personal
injury.
FUEL REQUIREMENTS
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 a dealer immediately. Use
of gasoline with a lower than recommended
octane number can cause engine failure and
may void 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.
6.2L A
6.4L E
ND
NGINE
Do not use E-85 flex fuel or ethanol blends
greater than 15% in this engine. The use of
octane boosting additives is NOT permitted for
use in the 6.2L Supercharged engine.
This engine is designed to meet all
emissions 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 in these
engines.
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.
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