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That depends solely on how much you intend to spend on the car. The two most preferred based on sales would be either Castrol, or Mobiil 1. You can get other oils like Royal purple, redline, or even AMSoil, but those tend to be a bit more expensive and harder to find. If it were my car, i would run a standard conventional oil (castrol GTX), and make sure its changed every 3 mo/3000 miles. Period.

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14y ago
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Q: Which synthetic oil should you use in 97 buick lesabre?
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