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The 2013 Buick LaCrosse requires 5.3 U.S. quarts of SAE 5W-30 full synthetic motor oil for optimal performance. Synthetic oil is preferred due to its superior ability to protect the engine with reduced friction levels. It is safe to switch between synthetic and conventional oils without harming the engine. Synthetic blends, a combination of synthetic and conventional oil, also offer benefits. Synthetic oil helps maintain engine cleanliness by capturing debris such as dirt and metal fragments that can cause damage. It is advised to change the oil every 7,500 miles or annually, whichever comes first.
The recommended volume of engine oil for the 2013 Buick Lacrosse is 5.3 quarts according to the manufacturer's specifications.