* LS1 (5.7L V8): This engine generally calls for 91 octane (or higher). Using lower octane fuel can lead to knocking/pinging and potential engine damage.
* Other Engines (Less Likely): While less common in a 2002 Trans Am, there might have been other engines available. If you're unsure, check your owner's manual. This is the definitive source for fuel recommendations.
Always consult your owner's manual. It will clearly state the recommended octane rating for your specific Trans Am's engine. Using the wrong octane can harm your engine.