Cybertronian food

Despite being robotic constructs, Transformers seem to have certain substances that are analogous to food.

How the Transformers eat the food is up to debate, because some of them don't have mouths.

These food articles include, but are not limited to, the following:

Snacks

 * Energon goodies

Other

 * In some rare cases, Energon. Period.
 * According to Grimlock and Rampage, Transformers are also food.