Why You Should NEVER Use WD-40 on Guns
This video explains why common household products like WD-40, transmission fluid, and brake fluid are unsuitable for firearm maintenance. It details the four key criteria for selecting a proper firearm lubricant: temperature range, gunk handling, system compatibility, and side effects. The instructor emphasizes that WD-40's residue and water-displacing properties can lead to operational issues and rust, while other alternatives have temperature or compatibility problems. Firearm-specific CLPs are recommended for their balanced properties and ease of use.











