Are you able to use regular gas in this car or do you have to use premium?

Asked by Jaedin Jun 14, 2022 at 05:26 PM about the 1997 Cadillac Seville

Question type: General

2 Answers
2,860

VRoom12345 answered about a year ago

91 min is recommended, but you can use 87 octane but have reduced performance. Maybe use 89 to split it?

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155,265

james answered about a year ago

Premium is required because this vehicle has a high compression engine. To save money I'd suggest using regular with an octane booster at each fill up. STP Octane Booster is a good product. I used it for years in my 1970 Pontiac Catalina to stop it from dieseling. It really does work. Hope that helps! Jim

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