Free All Rust Eater Deep Penetrating Oil, 11 oz Aerosol – Loosens Rusted Bolts, Nuts, Pipe Connections & Locks – Industrial-Grade Rust Remover, Silicone-Free, Safe on Paint & Plastic Surfaces, 2-Pack

I used this to break a 15/16 lawn mower nut loose. Previously used heat, an impact wrench and even tried a break bar. All everything did was round the nut off, so I bought a can of this penetrating oil and an extractor bit. I tried the extractor bit first, without the oil to see if that was all it needed. No luck, so I sprayed about a 1 second burst of this onto the nut holding the blade. I waited about 2 minutes, maybe a little less, put the extractor bit back onto it and it came right off. I put all the backstory in there so that you can see it was this that made the difference on whether or not that nut was coming off without being cut.

I used this product on hinges on my cast iron smoker that were rusted shut and well and behold after a few applications I was able to get these hinges to cooperate again. Does what it is supposed to do.

This product seems to be the real deal. The bolts that i sprayed seem to have come loose fairly easy. Most of them i could use hand tools and not power

Good product.

Avoid wasting time or money on other options. Throw the PB Blaster in the trash, Liquide Wrench is still good for an ICE flush treatment, but this is the B*E*S*T. It would have been more appropriately named "Cold Heat," as it performs comparably to a blue tip wrench.

The roof rotted and collapsed on a 50 year old concrete block shed. But the bolts remained that attached the sill. They were completely rusted and immovable. I applied this twice a few days apart and was able to loosen the 1/2” nuts with only a crescent wrench. A little odor but outstanding performance.

This is a great product It dissolved the rust on old lug nuts on a trailer. No heat needed Don't be without it

tried to use it for days on stuck valve, didn't work for me - had to have the valve replaced. Might work for one that wasn't stuck as long. The smell was very, very, very strong.