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Old 01-28-2019, 03:57 PM   #4
Mark114

 
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Drives: 2016 2SS Convertible
Join Date: May 2012
Location: St. Louis, MO
Posts: 1,780
I think Chevy only specs the new 0w40 for the 2019 cars as shown in the post above. I haven't seen anybody post where Chevy has issued an official change for the recommended oil on the previous LT1 and LT4 engines.
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