FUEL REQUIREMENTS
3.7/4.7L Engines (If Equipped)
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high-quality un-
leaded “regular” gasoline having an oc-
tane rating of 87. The use of premium
gasoline is not recommended. Under normal conditions,
the use of premium gasoline will not provide a benefit
over high-quality regular gasoline, and in some circum-
stances may result in poorer performance.
5.7L Engines (If Equipped)
The 5.7L engine is designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high-quality unleaded gasoline having an octane
range of 87 to 89. The manufacturer recommends the use
of 89 octane for optimum performance. The use of
premium gasoline is not recommended. Under normal
conditions, the use of premium gasoline will not provide
a benefit over high-quality regular and mid-grade gaso-
line, and in some circumstances may result in poorer
performance.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required.
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.
STARTING AND OPERATING
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Содержание 2008 Commander
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Страница 8: ...INTRODUCTION 7 1 ...
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Страница 107: ...106 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Страница 108: ...UNDERSTANDING THE FEATURES OF YOUR VEHICLE 107 3 ...
Страница 109: ...108 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
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Страница 195: ...INSTRUMENT CLUSTER 194 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 266: ...Lowering the Display Screen Remote Control Location UNDERSTANDING YOUR INSTRUMENT PANEL 265 4 ...
Страница 275: ...274 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 283: ...Operating Tips Chart 282 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Страница 325: ...324 STARTING AND OPERATING ...
Страница 362: ...Weight Distributing Hitch System Improper Adjustment of Weight Distributing System STARTING AND OPERATING 361 5 ...
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Страница 395: ...ENGINE COMPARTMENT 3 7L 394 MAINTAINING YOUR VEHICLE ...
Страница 396: ...ENGINE COMPARTMENT 4 7L MAINTAINING YOUR VEHICLE 395 7 ...
Страница 397: ...ENGINE COMPARTMENT 5 7L 396 MAINTAINING YOUR VEHICLE ...
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Страница 472: ...INDEX 10 ...
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