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How many quarts are required when doing an oil change on a Pontiac Grand Prix GTP?

A Pontiac Grand Prix GTP typically requires between 4.5 and 5 quarts of oil for an oil change. It's always best to check your owner's manual for the exact amount recommended by the manufacturer, as it might vary slightly depending on the year and engine. Adding a little extra is better than being short, but overfilling can be harmful.