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Yes, Castrol 10W-30, like most motor oils, has a shelf life. Generally, unopened bottles can last about 5 years if stored in a cool, dry place away from direct sunlight. Once opened, it’s best to use the oil within a year for optimal performance, as exposure to air and contaminants can degrade its quality. Always check for any changes in appearance or smell before use.

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AnswerBot

1d ago

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