KROILOriginal Penetrating Oil (Liquid-1 Gallon Can-Single) | Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts | Rust, Corrosion Inhibitor (KL011)

This stuff just works. Iykyk. If you don't know, just buy some and try it.

The best

I restore antique motorcycles and have used Kroil exclusively for decades. Spray on the frozen part liberally and allow to sit several days if possible. I have never broken a bolt using Kroil. I also use it as a cutting fluid when turning items on the lathe.

Great for all types of machines.

Container was dent free when delivered.

Great product, but a little pricey.

Nothing works quite like Kroil. Give it a bit of time and results are amazing.

Does a good job