Manufacturers of penetrating oil like to speak in code. The name WD-40, for example, refers to Water Displacement, 40th formula. It was developed in 1953, by the Rocket Chemical Company to protect the paper-thin outer skin of the balloon tanks on Atlas missiles from rust and corrosion. AV0-19 is another code, referring to Acetone – Vegetable Oil in a ratio of 1 to 9, respectively.

Even though I have been a devoted user of WD-40, I have probably purchased my last container. The reason being is that scientific tests indicate that AVO-19 is a superior product. See: https://www.engineeringforchange.org/how-to-make-penetrating-oil/

No wd-40

The optimal mixture is 10% acetone with 90% vegetable oil. It uses less than 55% of the torque to free rusted bolts as WD-40. It costs about 15% of the price of WD-40. While not as effective as the 1 to 9 ratio, and considerably more expensive, a 30 percent acetone mixture still works better than WD-40.

Engineering students at Drexel University, under the direction of Alex Moseson, conducted comparison tests of vegetable oil mixtures, WD-40 and automatic transmission fluid. Here are some of the results.

Lubricant Price/liter Torque required (Nm)
WD-40 $20.55 68.5
Acetone 30% vegetable oil 70% $5.48 48.4
Acetone 20% vegetable oil 80% $4.52 42.0
Acetone 10% vegetable oil 90% $3.58 36.6

Adam Davies, looked at the overuse of WD-40 in 2010: http://www.popularmechanics.com/cars/how-to/a6064/wd-40-vs-the-world-of-lubricants/

He discovered that WD-40 was second best (or worse) in several important areas. PB Blaster is best at loosening rusted nuts or bolts; Marvel Mystery Oil is best at freeing up rusted compression rings; Finish Line Cross Country is best at lubricating and protecting bicycle chains; while, Permatex White Lithium Grease is best at silencing squeaky door hinges.

Once their workshop is in operation, Unit One will be making its first batch of AVO-19. If you would like some, contact a persona at Unit One.

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