KROILOriginal Penetrating Oil (Aerosol Spray-16.5oz Can-Case of 4) | Penetrant for Rusted Bolts, Metal, Hinges, Chains, Moving Parts | Rust, Corrosion Inhibitor (AZKS162C4)

This stuff works great this is the real deal put it on some 86 model Jeep brake bleeders and they all 4 came loose and started working

After a lifetime of wd40 and PJ Blaster, someone turned me on to this and I love it. Sort of expensive, but as far as I'm concerned, it's the best there is.

Best penetrating oil I have ever used. It frees up parts I have not been able to free up with other penetrating oils.

This stuff seemed to work great. Used it on exaust pipe bolts and turbo bolts that are likely to break off. I didn't break 1! They actually removed very easy. Highly recommend kroil.

We have been using this product for many years. Not cheap, but it works

Have tried so many of the other penetrating oils out there (PB Blaster, WD-40, Liquid Wrench, etc) and Kroil Oil is always my go to. It breaks rust better than any of the others and can be used to clean and surface rust off a piece of metal or chrome. I always keep a can on the shelf in the garage and have turned several friends on to it and they now keep a can in thier garage. A must have if you work on your car or items that endure the elements. Rust is real and Kroil Oil is rusts enemy

I have a machinist friend who turned me onto Kroil. I used to use PB Blaster. Kroil works noticeably faster and better than PB Blaster and it smells a lot better than PB Blaster. I have used Kroil on a few tractor implement PTO two-piece shafts to free them loose as well as on automatic bolts and nuts.

Great for loosening bolts