What's the best penetrating oil out there now, to be used on 18 year old truck control rms

Kroil

PB

Has worked for me for many years.

I read underground Greek olive oil works great.

Don’t spoil it, Kroil it..

Nice!

Kroil. I was a skeptic. This stuff works. Not just on nuts and bolts either. Any thing rust seized together is a candidate for kroil.

Hot wrench.

Kroil or ATF and acetone

25% ATF, 75% Acetone.

Kroil if you have time. Mexican speed wrench if you need it off now.

50/50 cheap Walmart generic ATF and acetone- - - - -25% of the price of KROIL and just as effective.

Depends on what it is, but heating cherry red and quenching works when Kroil, etc. won't.

KY jelly.

I quit reading after 18 year old.

Kroil & heat gun

Free All

Spoiler - Liquid Wrench

Kroil. It works so well and is so convenient in the 4 oz (or whatever) squeeze can it’s crazy to mess with anything else.

Not sure why everyone is saying Kroil. It's pretty much crap, as are most penetrating oils compared to acetone and ATF. Heat works better anyways if you can get in there with a torch.

ASTRO Glide is nice.

KY Warming is hard to beat!

I've have wondered- does the acetone evaporate out of the mixture over time, or do you mix up a fresh batch frequently?

i use Kroil overnite and when it has to done right now its liquid wrench.

PB Blaster... if that doesn't do it, lite the torch...

This!

If ya don’t have this just use wd40 it works too.

That's what I been spraying on it

PB Blaster got my Bolens tiller to running again.

Yep,,,About 5 yrs now,,nothing better!

WD40 is NOT as effective as Kroil!

This.

Snake oil

Lloyds Moovit . Way better than wd40. It works. Got it from a truck driver. Should be available there too

heat with torch, spray with PB... remove fastener...

PB Blaster and Kroil are great. Ballistol is a good one too. I found a new bottle of 3 in 1 oil in the rectangle can in my father in law’s tool cabinet and I proceeded to oil a bunch of crescent wrenches, pliers and other tools…I love the old stuff too.

Kroil

Go to a company that works w big $ machinery and see what they use.

Project Farm is one of the first places I go for "which is best" type questions. He's pretty much tested about everything I will ever need.

Dribble some used diff oil then top with your favorite light oil.

That's what I've gone to using.

I give it time to work, though. If I have something that needs it, I'll spray it the day before I plan on working on it. Or if I find a stuck part, I'll spray it and just let it sit until the next day.

Patience beats a lot of cussing and frustration every time.

Did we do the same maintenance crew gig with the same boss man?

That was his SOP on anything and everything stuck.

KY

Diesel fuel does a decent job too.

As others have said, a mixture of 50% ATF & 50% Acetone seems to as well as anything and better than most.

Kroil

I'm a fan of Kroil but I also would not refute Project Farm results.

I don't know if there are different formulations of Kroil or not, I've used the stuff in the tin can with plastic spout myself and used it to remove a couple seized spark plugs. It took a while to do the job but it worked.

Back about 15 years ago I purchased a 100+ year old ML target rifle, of about 7mm caliber as I recall. It shot poorly and I decided to pull the breech plug so it could be slugged to ascertain bore dims. Breech plug said KMA. Put about 3” of Kroil in a jar, set the barrel in and let it soak overnight. Next day it unscrewed with finger pressure.

At my employer they decided to do a test of available penetrating oils, they bought a can of each and gave them to the guys in the shop for evaluation. Kroil came out as the most effective followed by Nut-Z-Lube and PB Blaster. I've always used Kroil.

For some reason, Kano Laboratories has stopped selling KROIL direct from their website. Now it says "contact a dealer". I used to buy it in bulk- - - -a gallon at a time cost about $100.00. The aerosol cans are outrageously expensive.

Sea Foam Deep Creep

nobody can beat project farm testing and he showed kroil PB and other top brands useless. good old liquid wrench was one of the best. watch the video. I made a batch of the ATF and acetone worked real good but when you store it then want to use it refresh the acetone

Yes. I use PB Blaster for all but the hard jobs. However, I keep ATF and acetone handy as separate components and then mix them up as needed for the hard stuff. I also use them to mix small batches of Ed's Red-- ATF, Acetone, Kerosene, and Mineral Spirits in equal parts. Ed's Red has become my go-to for gun cleaning. I leave out the Acetone unless I'm dealing with shotgun fouling.

Well, there are tests, and there are tests..

Just this summer I had to change out blades on my rotary cutter. They are held in place by steel bolts with nuts on the underside of the cutter, where they are exposed to the rust and corrosion of plant liquids, as well as the constant hammering of sand and rocks. It'd been 3 years since done, and in humidity and and heat to boot.

First attempt at removing a nut resulted in a twisted off bolt at the face of the carrier.

Added Kroil around the remaining nuts and let it sit for a day and tried it the following day. All nuts came loose immediately.

I don't think I'd call Kroil "useless".

I have seen a lot of damages cause they didn't have patience . Spray a whole can of Kroil and then immediately hit it with 1500 ft lbs impact .

I am glad kroil got the job done for you. 3-4 times a year I use a power washer and blast all the garbage out from under the mower

Well life on the farm is kinda laid back.....

Tried PB, and a couple others, way back when working on Jeeps (suspension/lift kits).
No air tools.

Coworker said try this and handed me a can of Aero Kroil.

I laughed. Figured it was same as the others.
Nope.

It worked.

Stinky stuff though.

Been to two major corporations w big equipment, and they use Kroil.

Hmmmmm.

to get the rear sights off of my 1898 Springfield Armory (30-40 Krag, 1903) i had to use Kroil every day, twice a day, for 4 days. i did 2 to 3 drops of Kroil (not aerosol) on the screws every night. on the fourth day i took the screws out by hand, not a screwdriver. i was amazed at Kroil. no buggered up slotted head, just 2 or 3 drops Kroil every night, till it comes out.

the rear sights screws were probably set at the time the rifle came out from the factory(1903 - 2013). i saved the screws and the rear sight (put on a Redfield 102K aperture sight) , because i can't find the screws that go into a Krag. the screw thread count is NOT standard or metric, instead it is French design which is no longer used. to protect the threads in the rifle, i lit up a candle and dripped hot candle wax into the threads after i degreased them.

i use Kroil on stuck bolts and screws overnight or if i try them the next day and its still tight, i'll use Kroil overnight again and again until its loose. i've used PB Blaster, WD40, acetone with ATF, brake cleaner and some other stuff, but Kroil is my go to and if i have to unscrew or unbolt it right now, Liquid Wrench aerosol is next in line.

Absolute bullschitt.

I tend to use PB blaster. Never heard about atf and acetone before. One thing I try to do is spray what I'm taking apart a day or two before I'm putting a wrench to it. Hard to do if it just broke and you got to get it running but often I know I'll be working on it a head of time.

mr meenie works on his mower 3 maybe 4 times a year ... a true mechanical genius

I use Kroil

Tri flow is another good one

PB blaster and a 48” pipe wrench with a 8’ piece of iron pipe slid over the handle as a breaker bar.

Found the CAS data on Kroil. Here's the ingredient list and percentage of each.

It was not designed to be a penetrating oil. It was designed to a Water Displacement. It took 39 failed formula’s to get it right. Thus, WD40.

Kroil was designed to be a penetrant.

The plant I work at has always used Kroil. Silikroil to be more specific. Recently the cans are no longer labeled as Silikroil but rather Kroil with added silicone. In any event, 25+ years it’s been a mainstay.

When putting things back together Fluid Film has gained respect. Stuff is great at preventing rust and seized parts. Use it everyday.

Chemical plant. Produces Chlorine and Caustic. Extremely corrosive to many materials.

On the ranch I use pb for penetration and fluidfilm for protection. Seems I get along fine w that combination. Really like fluidfilm. Seems to keep the rust out. Most fertilizer trailers are coated in the stuff after spring.

Kroil for the easy win.

The gal at Walmart looked at me kind of weird when I asked about where to find it.