Kroil Original Penetrating Oil


Loosen frozen metal parts the professional way, with Kroil Original Penetrant in liquid and aerosol (formerly AeroKroil) formulas. Based on scientific discoveries at Kano Laboratories, Kroil creeps into millionth-inch spaces, dissolves rust, and lubricates to loosen frozen metal parts easily. Kroil’s unique molecular structure facilitates penetration while maintaining a structure that breaks bonds due to either corrosion or compression.


  • Attacks corrosion: Frees bolts, fasteners, and other mechanical components.
  • Removes rust and carbon deposits: Will not attack or damage metal.
  • Penetrates faster and deeper: Can get into the smallest spaces, threads, and openings.
  • Works everywhere: Can be used on any corroded thread or tight parts.
  • Simplifies repairs: Makes maintenance jobs easier, faster, and safer to execute.

1 User Review

Add your review:
If you are trying to loosen stuck bolts, this is the stuff to use. Ive loosened many a manifold bolt with it. It is much better than WD 40 and CRC. Their is no comparison.