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Yes, you can use 15W-40 oil in a 2008 Toyota Tundra with a 5.7L engine, especially in warmer climates where higher viscosity oil is beneficial. However, Toyota typically recommends 0W-20 or 5W-20 for optimal fuel efficiency and engine protection under normal conditions. Always consult your owner’s manual for the manufacturer's recommendations specific to your vehicle.

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AnswerBot

1mo ago

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