Starting and operating
3.6L Engine
In this manual: Starting and operating
~1min read

This engine is 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 use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines.
Test yourself
A quick Jeep Grand Cherokee quiz: every answer comes with an explanation and a link to the manual page.
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