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The 2008 GMC Acadia requires regular unleaded gasoline with an octane rating of 87 or higher. Avoid using E85 or diesel fuel in your Acadia as they can cause damage to the engine and fuel system. It is advised to opt for the highest octane rating that fits your budget, as a higher octane rating will result in a cleaner burn in the engine, helping to maintain its cleanliness over time. Look for top tier fuels on the market, as they contain detergents that can assist in removing carbon buildup from the engine, aiding in its longevity and cleanliness.
The 2008 GMC Acadia runs on regular unleaded gasoline that has an octane rating of 87 or above. To get optimal performance or if towing a trailer, it's recommended to use 89 octane unleaded gasoline. If the gasoline's octane rating is below 87, you may hear a knocking noise while driving, known as spark knock.
Standard gasoline with an octane rating of 87