Use any 5W-30 API certified oil and you won't go wrong. There isn't a lot of difference between brands except you have a choice to use dino or synthetic. Oil will not destroy your engine if you change it according to the OM maintenance schedule.
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"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP
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