L112/4-4PKLIQUID Wrench L112-4PK Penetrating Oil Spray - 11 oz., (Case of 4)

Best penetrating oil there is. Spray it on tap the bolt a little bit. Give it a few minutes to work and will come right out. My neighbor is trying to change the oxygen sensor on his car and turn it no matter how hard he tried. I loaned him a can of this stuff. He sprayed it on tapped it a couple of minutes and five minutes later he had it off no problems.

Effective and affordable. Liquid Wrench is an honest-to-goodness product that does what it should without pretending to do more than it can. Too many other brands try to justify a higher price by claiming to be "professional" or "industrial" grade. As a penetrating oil, its proven to work better than Kroil and WD-40; which I was partial to for many years. The quantity/ price-per-ounce is also good value. Good viscosity, low-odor and works well to prevent flash rusting. Each bottle includes a straw for more direct application. Just for fun, I also like that the cap is shaped like a nut.

Why did you pick this product vs others?: For years I overlooked this in favour of WD-40. Idk, this is very good quality rust remover. I have some old project trucks I work on an this with some butane heat will free up most bolts. Now I recommend you spray, heat an spray then let it set an come back after a day or some hours. DONT Snap a bolt rinse an repeat! Photo is Shackles being replaced on my 4x4 F150. The old bolts were seized. Also, Apparently no one has this anymore in stock. I seen it only at one Truck Stop, but none of the Big Box Stores or Hardware Stores, BECAUSE I looked after watching the comparison test from Project Farm.

Good seller and good product. Exactly as described and fast shipping! Best lubricating oil I’ve ever used.

Ever since watching the "Project Farm" episode on YouTube a couple years ago, where he tested a bunch of the most popular penatrating oils / lubricants against eachother in a test and this 'yellow labeled' version of "liquid wrench" came out on top by a significant margin, it has been my can of choice since. Only problem is it has been hard to find in stores. Picked up this 4 pack here on Amazon for a decent price.

There's no other brand I'd use to cyr the rust and loosen seized parts. Been using this my whole automotive career and nothing comes close.

Liquid Wrench......Works. LW penetrates rusted parts better than any other product on the store shelves, period!

I like liquid wrench, but one of my cans ran out of propellant with most of liquid remaining. I wound up poking a hole in it and emptying it into an oil can- kind of the way it used to come.