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What type of hazard Are staples and metal shavings?
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What can metal shavings mean in an oil pan in a 2005 Ford F-150?
A lot depends on the TYPE of metal shavings you have in the pan. Larger "pieces" of shiny metal can often be broken rings and will be accommodated by oil burning, rough running, etc. Much smaller fragments can be rod bearings. Much depends on how the engine is running. More info on that would be helpful