CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish

This stuff is amazing as long as you can get over the smell.

So, picture this: My husband, the fearless shade tree mechanic, facing off against the stubborn starter bolts of his beloved Ford F150 pickup. These bolts, determined to defy his every effort, seemed to be mocking him with their unyielding grip. Enter stage left: CRC Knock’er Loose Penetrating Solvent 03020 – the trusty sidekick in his battle against rust and resistance!Let me tell you, folks, this stuff is like a superhero in a can. With a mere squirt, it swoops in to save the day, penetrating even the tightest of spaces with its industrial-grade might. As my husband affectionately calls it, this "reddish elixir of liberation" works miracles, loosening those stubborn bolts with a satisfying pop that signals victory!Now, I'm no stranger to the drama that unfolds in the garage when my husband is knee-deep in his DIY escapades. But let me tell you, CRC Knock’er Loose turned what could have been a comedy of errors into a triumph worthy of its own action movie sequel. With each bolt that surrendered to its powers, my husband's confidence soared higher than a superhero taking flight.And the best part? The humor! Oh, the laughter that ensued as my husband regaled me with tales of his epic battles with the bolts, complete with sound effects and dramatic reenactments. Who knew a can of penetrating oil could bring so much joy to our lives?So, to all the shade tree mechanics out there, I wholeheartedly recommend CRC Knock’er Loose Penetrating Solvent 03020. Whether you're facing off against starter bolts, rusty hinges, or any other stubborn foe, this superhero in a can is here to save the day – and provide a good laugh along the way!

Works like it should. CRC is a very good product.

I've used Kroil for many years after my father, who was an aviation mechanic, introduced it to me. It's the best penetrating oil I've used but it's very expensive. In the past, it was hard to get because you had to order it directly from the manufacturer but since they were bought out by another company, it's much easier to order it as a consumer.I was pleasantly surprised to find out that since Kroil's utility patent ran out, CRC came out with Knock er Loose which has the same formulation as Kroil. I have not seen it available locally so it's not as cheap as the ones you can buy in the store but it's still 1/2 cost of Kroil. Recently I used this a couple of rusted screws that secures a burner on a gas stove. The first one I didn't use any penetrating oil and snapped the head off because I thought the screw was turning. The other one I doused it with Knock er Loose, waited a couple of minutes and then turned the screw back and forth until I got it to break free and move slightly. Once it starts moving, then you know your almost home free. Keep spraying it with penetrating oil every now and then and turn it back and forth until you feel resistance. Patience is key - don't think you can just unscrew it forcibly because it's loose. The resistance you feel is the rust caught in-between the threads so you need time to break that loose with the penetrating oil. Working the screw back and forth not only helps break up the rust but also helps the penetrating oil seep further down into the threads.

love this crc knocker loose will buy again