Supco MO44 Rust Buster Liquid Penetrating Oil

Nothing

Bought this because of frozen prop shaft stuff box and within less than a hour I was able to easily break apart the the nut from the shaft housing. I give it an A+

Did not work.

My husband wont buy any other brand, he swears this is the best on the market!

I used this to loosen some bike wheel spokes that resisted truing. It works well, well especially if you let it sit for a little time. The product is very thin, as a penetrating oil should be, and really gets into the threads (and everywhere else). The cap design is flimsy, and it doesnt fit well. The company should probably spend another 5 cents and get a cap that fits snugly.

This is the best by far. Hard to find. Amazon prime!

This stuff really worked like a charm!

penetrating.....

Excellent product. I had two very rusted screws and bolts and it only took two minutes after I squirted it on.

Used it for some gun cleaning for some old rifles. Worked well but left some discoloration to the metal, wouldnt say for sure it was due to this product but just a heads up.