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Old 13-08-2015, 14:34   #1
F51
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Penetrants--PB, Kroil, and MNO?

I've been a fan of PB Blaster, Kroil, and 50% Acetone/ATF for years. Sometimes PB works better and sometimes its Acetone/ATF. Now listen to this. We went on a tour of a Macadamia nut farm a few months ago and the guy said the oil from Macadamia nuts was an excellent penetrant. I was very skeptical; sounded like a snake-oil salesman to me; especially so when he said they sold it in their store. He also said it is good skin lotion too, so my wife wanted some. I tried unsuccessfully to talk her out of it. So I thought "Ah-ha! Now it won't cost me anything to prove this guy wrong." I have 12 bronze portlights that don't get opened very often because the hinges are so stiff. I've tried to find a solution with little success. So, I put some MNO on one of the hinges and let it sit 5 minutes. It was very stiff as I opened it and worked it back and forth several times. Then as the oil worked into the hinge, it began to loosen up. Absolutely amazing. I went to two more ports and used Kroil on one and MNO on the other. I could open the Kroil one fairly easily, but the MNO one WOULD NOT STAY OPEN because the hinge was so loose! The down side to this is I am having to install screw eyes and hooks to hold open my ports. :-) This stuff is not easy to find. You need to go online and search for it (or go to the farm near Antigua, Guatemala). But it does work.
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Old 13-08-2015, 15:55   #2
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Re: Penetrants--PB, Kroil, and MNO?

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Originally Posted by F51 View Post
This stuff is not easy to find. You need to go online and search for it (or go to the farm near Antigua, Guatemala). But it does work.
Or one of the many sources in Australia where the nut originated
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Old 13-08-2015, 16:57   #3
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Re: Penetrants--PB, Kroil, and MNO?

So how is your wife's skin?

Mark
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Old 13-08-2015, 21:14   #4
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Re: Penetrants--PB, Kroil, and MNO?

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So how is your wife's skin?

Mark
I dunno, she won't let me spray Kroil on one arm and Macadamia nut oil on the other!
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Old 14-08-2015, 03:49   #5
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Re: Penetrants--PB, Kroil, and MNO?

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Or one of the many sources in Australia where the nut originated
Like at a major supermarket food outlet; snaped today while shopping
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Old 14-08-2015, 03:52   #6
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Re: Penetrants--PB, Kroil, and MNO?

@OP, thanks for the heads up on other uses of macadamia oil; most interesting.
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Old 14-08-2015, 09:29   #7
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Re: Penetrants--PB, Kroil, and MNO?

Be careful with PB Blaster as I've read that it can dissolve gaskets. Not to be used as a protectant.
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Old 14-08-2015, 10:20   #8
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Re: Penetrants--PB, Kroil, and MNO?

If your wife won't let you use her macadamia nut oil try a 1:1 mix of ATF and acetone. Machinist Workshop magazine did a study in which they chemically rusted a bunch of bolt together and then applied different penetrating oils. They did multiple trials of each penetrant and averaged the results. This is what they found:

The break out torque required for:
Nothing = 516 ft. lbs.
WD-40 = 238 ft. lbs.
PB Blaster = 214 ft. lbs.
Liquid Wrench = 127 ft. lbs.
Kano Kroil = 106 ft. lbs.
50/50 blend of ATF and Acetone = 50 ft. lbs.
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Old 14-08-2015, 11:49   #9
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Re: Penetrants--PB, Kroil, and MNO?

Jojoba bean oil was also being used as an alternative to ATF and sperm whale oil. There are all sorts of "natural" lubricants and solvents out there.
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Old 14-08-2015, 12:01   #10
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Re: Penetrants--PB, Kroil, and MNO?

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Originally Posted by StuM View Post
Or one of the many sources in Australia where the nut originated
I always wondered where all the nuts I keep meeting originated.



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Old 16-08-2015, 05:04   #11
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Re: Penetrants--PB, Kroil, and MNO?

Sorry for the dumb question -what is ATF? I have used the others mentioned...and want to try the Acetone / ATF 50/50 mixture. Thanks
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Old 16-08-2015, 05:17   #12
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Re: Penetrants--PB, Kroil, and MNO?

ATF Transmission oil
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Old 16-08-2015, 12:18   #13
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Re: Penetrants--PB, Kroil, and MNO?

Automatic
Transmission
FLUID.


If you own a car, it generally should be changed every 50,000 miles. Otherwise, the entire transmission can be changed every 100,000~150,000 miles.
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Old 16-08-2015, 14:04   #14
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Re: Penetrants--PB, Kroil, and MNO?

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Originally Posted by hellosailor View Post
Automatic
Transmission
FLUID.


If you own a car, it generally should be changed every 50,000 miles. Otherwise, the entire transmission can be changed every 100,000~150,000 miles.
And if you own a boat with a Hurth/ZF gearbox, you should change it every time you change the engine oil... see many discussions here on CF. Do, however, NOT add 50% acetone to it!!

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Old 17-08-2015, 11:16   #15
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Re: Penetrants--PB, Kroil, and MNO?

This is not the first time I have heard interesting things about macadamia nut oil. One of my businesses converts diesel vehicles to run on straight waste vegetable oil. We sold a VW Jetta TDI that was already converted to a farmer, who later called me and told me that he was a part owner of a macadamia nut plantation in Hawaii. He had them send him 5 gallons of MDO, which he put in the second tank (vegetable oil tank) of the Jetta. He said that the car was noticeably faster and more responsive on the MDO. My personal preference for penetrating oil is Marvel Mystery Oil, but PB blaster is great for applications that need something a bit thinner.
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