Sludge clogs oil passageways in the cylinder block. These passageways,
which are about the circumference of pipe cleaners, are like arteries.
Once the passages are clogged, moving parts such as valves, pistons and
camshafts are starved of oil. They can seize, causing engine-destroying
failures.


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The Center for Auto Safety in the nation’s capital:

• keeping consumers up-to-date on auto related legislation and regulation
• working with congress and federal agencies to make our cars safer
• providing expert opinions and data in congressional testimony.

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