KROIL 1 Gal. Original Penetrant Oil

We use KROIL in my trade, I am a union Millwright. We build and rebuild machinery in factories all over the country. One of my jobs was rebuilding steam turbine generators for Com-Ed in Chicago, steam turbines that had been running for 70 years. Needless to say we had plenty of stuck nuts and bolts, some the size of coffee cans, but sprayed them with Kroil and give them a little time for it to creep into the threads and we were able to loosen and remove them. The stuff worked so well I started keeping a can in my garage to use when working on my cars and motorcycles.

I am a Union Millwright and we work on 90% of the gas and steam turbines across the United States that is responsible for creating electricity across the U.S. Some of these components are exposed to 1200° steam for years at a time. Our contractors know what it takes to overhaul this equipment and that’s why we use gallons of Kroil!

Works great on everything from a siezed valve to a rusty pipe wrench and everything in between.

THIS PRODUCT CORRECTED AN EXTREMELY DIFFICULT TASK OF LOOSENING KINKED AND FROZEN TRACKS ON A MITSUBISHI BULL DOZER ---- TOOK ALMOST ONE GALLON / THANK YOU

The machine shop I work for always has this stuff on our shelves. Any stubborn bolt or fastener i come across instantly get the kroil treatment, breaks them loose everytime. Handsdown one of the best products on the market

I bought a gallon a LONG time ago and am still using fom it. And, I use it frequently. It doesn't take much. I have a little in a seprate container that I dip my screwdriver into then let it drip onto where I need it. Give it a little tap to start vibrations and leave it. Occasionally I have to reapply but not usually. Works every time. Seems to leave a preventative coating as well. Great stuff.

My go to penetrant for my farm. Especially helpful with rusted fasteners.

I have used kroil for over 40 years, it is the best penetrating oil.

I have restored classic cars for over 40 years. Nothing as difficult as taking apart rusted parts that have rusted bolts and nuts. I’ve used every type and brand of penetrant on the market and Kroil is the best performing one, hands down!

This and your other products have retired my other “penetrants” and “degreasers” as they just don’t work. Thanks, Mike.

Bought a gallon. Best penetrate of rust around. Was restoring a 1990 F150 Lariat. Loosened every rusted bolt I had and actually stop the rust on areas I exposed it to.

FOR MANY YEARS I BEEN USING EVERY PENETRATING OIL FOR RUSTED BOLTS. BUDDY MINE GAVE ME A CAN OF IT FOR THE FIRST USED I FELL IN LOVE WITH IT. I USE IT FOR LOT THINGS. I WIPE ALL MY SOCKETS WRENCHES IMPACT GUN. THIS STUFF IS AMAZING.

Have used this product for over 30 years the best product I have found for frozen bolt or anything . Great product

I am a Retired Mechanic who has worked on everything in My Career. Kroil has been My Go Too Penatrant and without fail it gets the Job Done every time. I buy by the Gallon as I have My trusty Kroiler to refill.

I had this as a specified penetrant for a job at the facility where I work. I've been using penetrant oils in the Petrochemical, Aviation and Nuclear industries for over 35 years and this was the first time I'd come across Kroil. I wish I'd come across it 35 years ago! It just works so well and is much faster and more effective than any similar product I've ever used before. Thankfully the container supplied to me contained much more than was actually needed, because it just works so well. This is a good thing because I now have a new and very effective weapon in my arsenal for tackling seized and rusty components here on site which, being next to the sea, is a common and re-occurring problem. Highly recommended.

I started using Kroil penetrant several years ago when I couldn't get a bolt loose on a piece of farm machinery that needed immediate repair. It's been a staple on the farm ever since. As a woman farmer now in my seventies, Kroil makes my work a lot easier.

We used this product on a few of the large Turbine installations over the years. keeps the rust out, keeps the nuts and bolts working freely. It also creeps into the hard to get at spots the normal "penetrating oil" does not.

I have been using Kroil since 1973 and in working on old rusty cars,trucks,farm equipment I would not be without my trusty can of Kroil.I have taken things apart that torches and cheater bars could not handle. If it has been rusting for years, Soak it and come back in a few hours and take it apart.This has been the key to working on old rusty things. Thank you Kroil !! for being here all these years.

gets everything loose while working on cars and lawn and garden equipment.

I've been using this product for the past 30 years. Never fails me used it on a 1965 Corvette exhaust within the hour the bolts and were loose. Great product wouldn't use nothing else