As someone who's done research and worked with rusty bolts for over 50 years, I can tell you that your test did not address the efficacy of the 3 fluids as a penetrating/ loosening agent. You probably tested relative viscosity. If you wanted to test for their true penetrating/ loosening ability you would have needed to uniformly rust all 9 threaded nots & bolts, then applied each fluid, allow them to work for a specified period of time, then use a torque meter to determine which came loose the easiest. Also, there are people who allow penetrating fluids to properly marinate rusted surfaces before attempting to loosen.... I let a rusted glove box on a '56 Chevy marinate for over a day to allow it to finally loosen up... PB Blaster worked great!!!

Thank you! I have used a number of US old gun cleaning recipes and one that is similar to yours is “Ed’s Red”, my favourite. So this works😊

thank you-I work on old car's old tractors and old trailers, anything old .I've used all the regular penetrating oils ,fluids and this is helpful .not everybody can run to the store every time you need something ,necessity is the mother of invention .thank you

The best ATF is Dexron II D. I managed to find a 20 ltr drum of that in a garage sale a few years ago - all it gets used for is mixing with acetone... I was introduced to that mix by mechanics back in the early 80's, we found the later ATF fluids just not quite as aggressive when things are really rusted up.

I have used your Loose nut solutions for years. Mixing the fluid every time helps.

Go to the pharmacy and ask for a bottle of Methyl Sylicate. It was $6.00 last time I bought it. It’s otherwise known as wintergreen oil. Put it on whatever you’re trying to free up. Caution it’s very flammable. Give it a bit and disassemble whatever you’re trying to disassemble. We used this in the Navy to disassemble jet engines and I have used it for 40+ years as a professional aircraft technician. The last time I went to buy a can of Kroil it was $28.00 at Tractor Supply. You’re welcome.

Acetone and ATF 50/50. Works well.

The heat from the flame of a propane torch before and after the application of any rust penetrating fluid is often necessary, time and patience, to return and do the treatment multiple times... even letting the fastener cool and soak until the next day. Or just cut break and replace if it's not in a tight spot or the fastener is for whatever reason, unobtainable.

Mystic Metal Mover!!!!! Get some. NOTHING ELSE COMES CLOSE.

lighter fluid and transmission fluid work well

Nice 👍

Making your own penetrating oil is the biggest waste of time. I"m a professional aircraft mechanic and I don't have time to fool around making some "magic" penetrating oil. Just buy a can of Kroil and get back to work. Expensive but it works. And BTW, WD-40 is not penetrating oil; it's terrible for that purpose.

Is ur Bride aware that u r using her container from the kitchen that is a fat separator or am I exposing my ignorance by not knowing that it is actually a garage measuring cup? 🤯😁

test fail !

Kroil oil. Is king!!