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"Before embarking on a project like replacing your car\u2019s engine oil, you need to decide which size socket wrench you should use. Learn more about what size socket wrench you need for an oil drain plug from this article."^^<http://www.w3.org/2001/XMLSchema#string>
<http://auto.howstuffworks.com/under-the-hood/vehicle-maintenance/what-size-socket-wrench-for-oil-drain-plug.htm>