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I used to own a Chevy Sonic which shared the same engine as the Cruze. Those engines had an issue where the spark plugs were gapped inconsistently and/or incorrectly from the factory.

One of the improvements you would see after gapping them correctly is smoother idle and more low end response/power.

The more I drive this car the most I notice how rough it idles and how unresponsive it is until 2000+ rpm.

I plan on checking my spark plug gap soon, but has anyone else checked it? They're supposed to be set to 0.028".
 

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2021 TB Zues Bronze Activ
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I have not checked mine.
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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I haven't checked mine and my 1.3 is running great, but I do always run 91 octane which does make it idle and run better.
 

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2021 TB Zues Bronze Activ
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I run 93 in mine. Seems to run good for a 3 popper.
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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2021Trailblazer RS AWD Scarlet Red Metallic
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866 Posts
$8 if you guys don't get rid of newsom.
Actually he's trying to get rid of gasoline powered vehicles all together, wants it done by 2035. 😡

BTW, $8 a gallon is nothing, I used to fuel up some of my high compression vehicles with 96 octane at Sonoma Raceway for almost $10 a gallon. 🤪
 
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