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In 2009, the BMW 328i requires oil with the specification 5w-30. It is crucial to use high-quality oil to ensure that the engine operates smoothly. Over time, issues may arise with the oil, leading to potential engine malfunctions. One common indicator of problems is a strong burning odor, which should be promptly investigated to prevent potential car damage. Additionally, listen for any unusual knocking sounds from the engine and monitor your gas mileage, as poor performance can result from bad oil. It is recommended to change the oil every 5,000 to 10,000 miles to maintain engine health. Neglecting to do so can lead to significant engine problems down the line.
The engine oil recommended for the 2009 BMW 328i is SAE 5W-30.