Soft drink
From MediaWiki
Soft drinks (also, pop, soda, juice and about a thousand other names) is fizzy stuff that comes in cans. It is available in both sugared and diet versions. It is not an adequate fuel source for Transformers.
Optimus Prime (more than once) and his near-identical twin have been known to shill for certain manufacturers.
Fiction
Marvel Comics continuity
Shady auto dealer Big Steve immobilized the Throttlebots by filling their tanks with sugary soda, allowing RAAT to capture them. Used Autobots
Transformers movie
Pepsi ads and Mountain Dew vending machines can be seen in Mission City
