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Will WD-40 loosen a screw?

I need to get a couple of screws loose in my engine bay. Will WD-40 loosen a screw?

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Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Yes, WD-40 will loosen a screw easily and it’s safe to use in the engine bay.
Simply spray a small amount of the lubricant over the corroded area. Wait 15 minutes or so until the WD-40 has penetrated the surface. Then, use a screwdriver to easily remove the screw.
Be very careful about chipping away at a tight screw with any other implements or abrasive cleansers. If all else fails, bring your vehicle to a mechanic to avoid damaging any parts.
You know what’s even simpler—and faster—than removing a corroded screw? It’s
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