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Your car with the V6 has come tuned from the factory to run low grade octane fuel, keep the money in your pocket. Stick with using the cheap fuel in your car you won’t notice that much, if any change in performance if you are using the car for everyday use.
If in the future you decided to upgrade to the SS or ZL1 then it’s recommended that you use premium fuel in these cars. This has to do with engine knock, etc.
But having said that the computer in the SS and ZL1 can adjust to run lower octane fuel if it had to, but I wouldn’t make this a common practice.
Hope this helps.
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