Liquid energon

Liquid Energon is energy!

Cartoon canon
After having the Heart of Cybertron installed in him, Megatron led the Decepticons in a toast to the impending destruction of the Autobots. During their consumption of liquid energon, the Decepticons became over-energized, and started to behave in a manner similar to a state of human drunkenness: Rumble began to hiccup (even though he doesn't need to breathe!), Thundercracker went offline, Megatron began to ramble about the "good old days" on Cybertron, and Laserbeak's navigational systems were impaired. Only Megatron was able to revive himself to an acceptable combat level when Powerglide showed up.

This is only going to reinforce Megatron's superiority complex.