Penetrating oil test |
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Penetrating oil test |
puffinator |
Aug 31 2014, 01:47 PM
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#1
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Member Group: Members Posts: 193 Joined: 6-August 13 From: Annapolis, MD Member No.: 16,218 Region Association: MidAtlantic Region |
I got this via another car guy forum.
For All of you Mechanic's and Self doer’s out there. Penetrating Oil - interesting This was in one of the Military Vehicle Club newsletters Here is an interesting article submitted by Bob Muller for our members consideration Penetrating Oils Recently “Machinist Workshop Magazine” did a test on penetrating oils. Using nuts and bolts that they ‘scientifically rusted’ to a uniform degree by soaking in salt water, they then tested the break-out torque required to loosen the nuts. They treated the nuts with a variety of penetrants and measured the torque required to loosen them. This is what they came up with: Nothing: 516 lbs WD-40: 238 lbs; PB Blaster: 214 lbs; Liquid Wrench: 127 lbs, Kano Kroil: 106 lbs (ATF)/Acetone mix (50/50): 50 lbs. This last “shop brew” of 50% automatic transmission fluid and 50% acetone appears to beat out the commercially prepared products costing far more. |
GeorgeRud |
Sep 1 2014, 04:01 PM
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#2
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
I think that acetone evaporates quite quickly, so that may be the issue in not having it commercially available. However, it probably helps carry the transmission fluid into the needed area to loosen the fastener.
Kroil has been on my workbench for years and seems to be stable over time, so it's easy enough to continue using it. If it doesn't work, i'll definitely try the acetone/ATF mixture! |
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