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    1988 Buick Regal 2.8L FI OHV 6cyl

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    Oil Drain Plug Gasket

    Oil Drain Plug Gasket Operation:

    A 'washer' or o-ring that seals the oil drain plug contact point to help prevent leaks at oil pan drain hole. These washers can be made from copper, fiber, or rubber. Overtightening and excessive gasket compression is the leading cause of failure.

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