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The best coolant for an Infiniti QX4 is typically a high-quality, ethylene glycol-based antifreeze that meets the specifications set by the manufacturer. Look for a coolant that is phosphate-free and compatible with aluminum engines, as the QX4 features aluminum components. It's recommended to use Nissan's own coolant or a reputable brand that meets the same standards, ensuring optimal engine protection and performance. Always refer to the owner's manual for the specific coolant recommendations for your model year.

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5d ago

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