This test demonstrates that not all penetrating oils are equal.
The see-through plastic/rusty bolt test shows which ones actually penetrate and which ones don’t.
So, which penetrating fluid is best?
In this showdown, Project Farm tests:
- Brake Fluid,
- Seafoam Deep Creep,
- Fluid Film,
- BG In-Force,
- WD-40 Rust Specialist, and
- CRC Knock’er Loose.
In the end, Deep Creep won the competition, with CRC Knock-er Loose coming in a close 2nd…