Supco MO44 Rust Buster Liquid Penetrating Oil

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.

Very good product, it works.

Works like a charm on brass bushings and leaves them slightly lubricated without the chance of any build-up to occur like how it does with 3-in-1 oil

This is awesome, cuts through rust esily

Good penetrating oil.

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

Great

I had two rusty hinges on a ramp for a trailer. I Used this on both. One hinge came loose in a matter of 15 minutes. The other hinge required several applications more and finally heat and a mallet to loosen the 2nd hinge. I was kinda impressed with the first hinge loosening up so quickly.

But rust buster you could ever invest in.

I really liked this product, after I used on old rusty screw they just were like new. Tight them up as much easier