Nucleon (substance)

Nucleon is an incredibly powerful energy source for Transformers, but though it gives great strength and power, it may have terrible side effects. One very common effect is the loss of transformation ability. The Actionmasters resulted from injudicious use of this mysterious, dangerous substance.

Nucleon appears as a funky liquid with a dangerous glow. It looks like fun, and seems to help, but don't be a fool! Listen to your momma and stay off the stuff!

From Teletraan I: The Transformers Wiki, a Wikia wiki.