Kroil Aerokroil Penetrant - Rust Penetrating Lubricant - Corrosion Inhibitor Oil for Chains, Hinges & Stuck Metal Parts - Home & Industrial Use - Aerosol - 13 oz - 1 Pack (KS132)

A great product I have used for years. Works great on old rusty bolts

Amazing! Not the cheapest but beats any other brand. Highly recommended.

PCV valve never replaced on 1st Gen Nissan Xterra. After 26 years, no way was that coming out of the engine without a fight: Kroil to the rescue. I sprayed a generous amount of product between the engine and PCV valve, then waited a couple of hours. With a little effort, I was able to ratchet it out. High five to a great product for automotive use.

Worked great

This is the best penetrating oil I have used. It is pricier than others butvreally works. Came quickly and well packaged

The creeping oil will loosen up things you’d given up on after a couple of days

Wow. When I read the reviews here and the ads on the radio I figured that this was THE miracle penetrant. Yah, it works but expected the oil to almost instantly un freeze the worst rusted fasteners and break free the nastiest corrosion. It works, but against PB Blaster, it works in just in a LITTLE less time. It does have a valve that regulates the flow of the very expensive product. $ to everything else considered? Meh.

Works better than WD-40

Unbelievable

Kroil is good. This seller is not. For whatever reason they don't provide ship times (at least in my experience) and then refuse refunds. So guess what? Bad news.

Did not work for me , Did not loosen rusted bearing