Q20 was invented in 1950 in Pinetown, KwaZulu-Natal by a Mr Robertson, as a product to displace water from the distributor caps on the old VW Beetle, which was notorious for stalling in wet weather. It was an effective water repellent, kept rust at bay, eased squeaky door hinges, and made it easy to release rusted or seized nuts and bolts. Initially he did not know what to call it but he told his neighbour that it certainly had 20 answers to 20 questions.
The secret behind Q20 is that it is heavier than water. Since oil floats on water, simply oiling the area will not resolve the problem. But because Q20 has a specific gravity of 1.154, it can displace water which only has a specific gravity of 1. Once Q20 is sprayed on water, it sinks to the bottom, where it acts as a water displacer and lubricant on the problem area.