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Motor Oil

A lubricant expressly formulated for use in an engine.

AutoZoner explaining coolant to a customer to ensure answer any antifreeze questions

What Is Antifreeze and What Does It Do?

Ever find yourself wondering about how automotive coolants work? Us too. Learn what you need to know about antifreeze.

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STP motor oil in front of a red classic car in the garage

What Does Oil Do for a Car's Engine?

It's common knowledge that oil protects engines. But do you know why?

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