2007 Dodge Dakota Owner Manual - Page 238
2007 Dodge Dakota Manual
Page 238 highlights
238 STARTING AND OPERATING FUEL REQUIREMENTS The 3.7L/4.7L engines are 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. The routine use of premium gasoline is not recommended. Under normal conditions the use of premium fuel will not provide a benefit over high quality regular gasoline and in some circumstances may result in poorer performance. Follow the recommended tire rotation frequency for your type of driving found in the "Maintenance Schedules" Section of this manual. More frequent rotation is permissible if desired. The reasons for any rapid or unusual wear should be corrected prior to rotation being performed. The 4.7 HO engine is designed to meet all emissions regulations and provide satisfactory fuel economy and performance when using high quality unleaded gasoline having an octane range of 87 to 91. The manufacturer recommends the use of 91 octane for optimum performance.
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