Which Penetrating Oil Works Best to Remove Rusty Bolts?

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Video: This test demonstrates that not all penetrating oils are equal. In fact, the see-through plastic/rusty bolt test shows which ones actually penetrate and which ones don’t. Which penetrating fluid is best? In this showdown, Brake Fluid, Seafoam Deep Creep, Fluid Film, BG In-Force, WD-40 Rust Specialist, CRC Knock’er Loose.