What the Heck is an Enzyme?
An enzyme is a protein that causes a chemical/ molecular reaction, which results in the forming or breaking of bonds. Enzymes are organic catalyst uniquely capable of accelerating specific reactions. In the case of the Oil-Diminisher, it is particularly well suited to breakdown hydrocarbon chain or molecular bonds.

Let's look at an analogy of how an enzyme works. If a car is parked on the top of a steep hill, in neutral, with a block of wood under a tire it will not move for a very long time. Maybe in a hundred years the block of wood would rot and the car would then roll down the hill and be destroyed. However, if a neighborhood boy came along and kicked the block out from under the tire, he would be the "enzyme" to a much faster destruction of the car.