Kano Aerokroil Penetrating Oil, King Size, 13 oz. aerosol (AEROKRO0ILKING)

As a penetrating oil it actually works, check the YouTube tests. When you break a bolt loose the threads are wet. PB and most others won’t do that. The rub is that you will pay dearly for a can. Worth every single penny. You’ll get fasteners loose that you wouldn’t think possible, or would have required a torch. It’s won’t perform magic, but outperforms everything I’ve tried in a can. You’ll never touch the can of liquid wrench or Pb again. Kroil can be used sparingly as well, so that makes the value proposition a little better.

It may be a little pricey but it works better than anything else! Been using it for 50+ years.

Works far better than PB Blaster, but at a significant cost increase. I keep both available and use each depending on if it needs "the good stuff" or can be loosened with the cheaper alternative.

I’ve used pb blaster for many years. Works about the same as on, but I’ll probably stay with the cheaper pb.

This will break free even the toughest parts that have rusted. Well worth the money