Add Fuel is Portuguese visual artist Diogo Machado (b. 1980).
With a degree in Graphic Design from Lisbon's IADE – Institute of Visual Arts, Design and Marketing, he spent a few years working in design studios in Portugal, followed by an eight-month stint in Munich, Germany. Since 2007, he has been focusing exclusively on his artistic work.
Starting out under the full name Add Fuel to the Fire, he first created a dark yet exuberant visual universe populated by a cast of slimy, eccentric and joyful creatures, influenced by a variety of interests ranging from video games to comics, animation, sci-fi, designer toys, and urban visual culture.