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When using the 3.9-liter V6 engine, the 2010 Buick Lucerne requires 3.8 liters (or 4.0 quarts) of SAE 5W-30 synthetic motor oil. If you have the 4.6-liter V8, you'll need 7.1 liters (or 7.5 quarts) of the same type of oil. Buick suggests changing this oil every 7,500 miles, but it might be necessary to do it more frequently based on where you drive and how you drive. Your vehicle has an oil life indicator that will alert you when it's time for service. It's a smart idea to regularly check the oil level, even if it's not yet time for a change, so you can catch any issues early. The average cost for an oil change on the 2010 Lucerne is typically between $110 and $150, which includes labor costs of around $40.
Buick suggests utilizing synthetic motor oil with a viscosity of 5w-30 for a 2010 Buick Lucerne.