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Spark plugs don’t last forever. If you want to maintain your engine’s health and efficiency, knowing when to swap them out is essential. One common myth is that performance spark plugs ‘create’ horsepower. In reality, [...] -
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The Problem with Modern Low-Zinc Oils For years, car makers said to use zinc for engine health. Why do modern oils have less zinc and phosphorus? The shift started with the American Petroleum Institute (API). [...] -
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