![How Engine Sludge Forms. And How To Prevent It.](https://blog.amsoil.com/wp-content/uploads/2017/03/cropped-GettyImages-176714019.jpg)
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How Engine Sludge Forms. And How To Prevent It.
Engine sludge is a black gelatinous substance that wreaks havoc in engines. Fighting sludge in oil means using a good...
Oil viscosity is the measure of its resistance to flow. How quickly or slowly motor oil flows affects how well it protects your engine.
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