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Is it normal for a 2006 Buick Lacrosse 3.8 liter engine to use quart of 10w30 oil every 3200 miles?

No, that's not normal for a 2006 Buick Lacrosse 3.8L engine. A quart of oil every 3200 miles indicates a significant oil consumption problem. While some oil consumption is expected in older engines, a rate that high suggests a potential mechanical issue.

Possible causes include:

* Worn piston rings: This is a common cause of oil consumption in higher-mileage engines. The rings lose their seal, allowing oil to burn in the combustion chamber.

* Valve stem seals: These seals prevent oil from leaking into the combustion chamber. Worn seals can lead to increased oil consumption.

* Leaking valve cover gasket: A leak here won't directly burn oil, but it will reduce your oil level.

* Worn or damaged cylinder head: More severe damage to the head can allow oil to leak into the combustion chambers.

You should have your Buick inspected by a qualified mechanic as soon as possible. Continuing to drive with this level of oil consumption risks serious engine damage. Ignoring the problem could lead to a costly engine rebuild or replacement. The mechanic can pinpoint the source of the leak and recommend the necessary repairs.

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