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4. When the filter you're trying to remove only allows for 10 degrees of a turn, the strap wrench can be a great help. Like most filter wrenches, you can fix it to the filter at any position, face up or down. The cool thing about the strap wrench is it's flexible, and you can use an extension on it. This tool is truly a must for anyone wanting to replace a Duramax fuel filter or a Ford Expedition oil filter.