Ratings may include incentivized customer reviews.
What Customers Are Saying
This penetrating oil is widely praised for its exceptional performance in loosening and freeing up rusted, stuck, or seized fasteners, bolts, and other hardware. Users consistently report successful results across a variety of applications, including firearms, vehicles, machinery, and household items. The product is also noted for its lubricating and cleaning properties, leaving surfaces shiny and clean. Many reviewers emphasize this as a must-have product, especially in areas prone to rust and corrosion.
Customer review summary generated by AI, including incentivized reviews.BEST ( OIL ) EVER MADE! " KROIL OIL " !
Would RecommendI BOUGHT SEVERAL CANS OF KROIL ORIGINAL PENETRANT - 8OZ DRIP A FEW MONTHD AGO ! I HAVENT USED IT ALL YET, BUT WHEN I DO , BOY IM BUYING MORE OF THIS WONDERFUL STUF ( KROIL OIL THAT IS ) !! I USE THIS WONDERFUL OIL ON ALL MY GUNS !! I ALSO USE THIS OIL ON MANY OTHER THINGS, SUCH AS RUSTY NUTS & BOLTS & OTHER THINGS AROUND THA HOUSE! I CAN'T LIVE WITH OUT MY ~ KROIL OIL ~ Howard M. ~ 12/8/2024
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It just works.
Would RecommendKroil just works. It penetrates better than anything I've ever tried, and a big bonus is that it doesn't stink like some other options.
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Awesome
Would Recommend[This review was collected as part of a promotion.] I bought this product for the first time 2 mo tha ago. It's my go to now. Works amazing for everything it's intended for
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Amazing
Would RecommendEver since I've been introduced to the magic of AeroKroil, I've been astonished by how WELL it works. Doing HVAC I have to change a lot of fan motors on AC units outside; some are 5,10,24 years old. The fan blades are rusted to the motor shaft beyond belief. A few drops of Kroil, a few minutes to let it do the magic, and Presto! Pops right apart.
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The nostalgic penetrant oil
Would RecommendSmells like grandpas basement. A very nostalgic product I am happy that it hasn't changed over the years and it works just like it should.
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The best product for cleaning guns
Years ago I was lucky enough to geht a canister of Kano Kroil Kroil here in Germany. There is nothing better for cleaning my guns.
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Game Changer
Would Recommend[This review was collected as part of a promotion.] A while back I tried out a little bit of Kroil for some heavy duty gun cleaning jobs, and it absolutely blew my mind when I saw the results. It leaves a rifle barrel shiny and clean in no time and it slicks up stubborn parts like a champ. I’ve never seen a product work so well so quickly, and I’ve tried the majority of the cleaning/lubrication products on the market. Kroil is like the Swiss Army knife of penetrants: it does everything. I’ve use...
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Cable Creeper
I had both brake cables on my 4 wheeler locked up and new cables were costly. I had read about how kroil creeped and freed up rusty stuff. i applied the oil to the lower end of the cables 2 times in 5 days and both cables started working as good as a new cable.
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Better than the other stuff
Would RecommendI bought this to see how well it'd work on stuck wheels. Just soak the hub give it a few minutes them wheels come off with minimal effort
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Getting the siezed unseized!!
Would RecommendWe use kroil in the biomed shop at my hospital. A lot of metal fittings are seized from repeated cleaning. The kroil always loosens them up. Thanks Chris B
From kroil
Disappointed in product
Would Not RecommendPurchased a 8fl oz can of original penetrant based on mechanic recommendation. Used it about 6 times. However, now when I turn the can over to pour the penetrant, the penetrant leaks where the cap is connected to the can before it comes out of the spout. Therefore, it leaks onto parts that I don't want the fluid on, before I can get the penetrant to the particular bolt or fitting needing loosening. I am 70 years old and have poured fluid out of these types of cans for 55 years and never had ...
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Best in the business
Would RecommendI’ve used Kroil for years. Best stuff for anything metal related. I find the non-aerosol to be my first choice. It’s reliable and it works!
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Worth the cost of product!
Would RecommendI have never heard of Kroil until 6 months ago and decided to purchase a can. This product is amazing, I have applied this product on everything from the blades of hair clippers, hinges, seized action on a pellet gun, deraillers, gear cables, locks on an old truck cap, rusted bolts/nuts and many more things. I really wish I had this product years ago.
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Handy and durable!
Would RecommendA can tough enough to rattle around in the tool box.
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Great for rusted bolts
Been using Kroil for many years and has never let me down, Loosens rusted bolts on old farm equipment that would never come loose with anything else.
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Bought a few years ago. Great around rusty parts. Thanks.
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Use anywhere but the Kitchen
Would RecommendI've used to release frozen bolts on antiques, vintage engines and my current daily driver in the crankcase. Always performs as expected! I highly recommend but get the liquid, its takes so little the gas in the aerosol runs out long before the product does
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Superior Cleaner
Would RecommendAfter years of hearing about Kroil from my machinist uncle. I used some to clean my gun barrel. I was shocked by how clean the gun became. I am sold by the virtues of your products and tell everyone with a problem to use it first and only
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Works Great
I have used Kroil original and original spray for years. Always gets r done. I have even used moly spray when it was cool to moly coat bullets for reloading rifle ammo.
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Rifle
Would RecommendBought kroil to clean and lubricate old used rifle that had many years of neglect
From kroil
Thank you for sharing your experience with Kroil, and I’m sorry to hear about the issue you encountered with the can leaking. We greatly value your fe...