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Can you tell me the type of transmission fluid needed for a 2015 GMC Sierra 1500?
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★ Top Answer
In a 2015 GMC Sierra 1500, the transmission is filled with fully synthetic Dexron Vi Automatic transmission fluid and requires about 6 quarts. The manufacturer recommends servicing the transmission at 30,000, 50,000, and 80,000 miles. During the service, you will need approximately 12 quarts of Dexron to fully drain and flush the system by filling and emptying it multiple times. Additionally, you will need to purchase a new transmission filter from where you bought the fluid.
More answers
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In 2015, the transmission fluid recommended for the GMC Sierra 1500 is AC Delco Dexron-VI automatic transmission fluid.
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