What is the octane gas rating requirement for a 1998 Buick Century?

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Mario


Its a 1998 buick Century Limited with a 3.1 Engine. Wondering if its Unleaded. Regular, or Premium. I think its unleaded like all the other regular American cars but just want to make sure.

One Response to “What is the octane gas rating requirement for a 1998 Buick Century?”

  1. john m Says:

    unleaded. but it dont hurt if you put super.

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