Add Fuel
LLB Auction has offered 2 lots by Add Fuel since July 2026 and sold 2 of them for hammer prices from €300 to €500.
The house emails you when a lot by Add Fuel enters a catalogue.
- Lifespan
- Born 1980
- Lots sold
- 2/2
- Share sold
- 100%
- Record hammer
- €500
- Median hammer
- €300
Lots at LLB Auction (2)
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What is a work by Add Fuel worth?
At LLB Auction, works by Add Fuel have reached hammer prices from €300 to €500. The median of the 2 lots sold is €300.
The record is €500 for Jade UberKranky, in the sale The August Edit of 25 August 2026.
Hammer prices by medium
| Medium | Offered | Sold | Lowest hammer | Median hammer | Highest hammer |
|---|---|---|---|---|---|
| Vinyl Art Toy | 2 | 2 | €500 | €500 | €500 |
What sets the price of a work by Add Fuel?
Hammer prices reached on average 1.33 times the low estimate, and 0 of the 2 lots sold went above their high estimate.
How is a work by Add Fuel authenticated?
LLB Auction examines every work in person before it is offered. Send the certificate, the invoice and any document of provenance with your photos. Lyna Brahami reviews them with the work.
How do I sell a work by Add Fuel?
LLB Auction handles the sale from the first photo to the payment:
- Free valuation from your photos by Lyna Brahami, within 48 working hours.
- Consignment: the contract, the agreed reserve and the commission.
- Photography, research and cataloguing by the house.
- The online sale on llb-auction.com and on Interenchères.
- The buyer pays the house.
- The house settles you with a statement.
- The result is published in the house’s results.
Questions about Add Fuel at LLB Auction
How many works by Add Fuel has LLB Auction sold?
Between July 2026 and August 2026, LLB Auction sold 2 of the 2 lots by Add Fuel it offered (100%).
What is the record price for Add Fuel at LLB Auction?
The record is €500 for Jade UberKranky, in the sale The August Edit of 25 August 2026, against an estimate of €300 to €600.
What does a work by Add Fuel usually sell for at LLB Auction?
The median hammer price is €300 across 2 lots sold.
Do works by Add Fuel sell above their estimate at LLB Auction?
0 of the 2 lots sold went above their high estimate. On average the hammer reached 1.33 times the low estimate.
Do these prices include the buyer’s premium?
The prices on this page are hammer prices, before the buyer’s premium and VAT. The results page of each sale gives the price with premium of every lot sold.
How do I get a valuation of a work by Add Fuel?
Send photos of the work, of its signature and of any certificate through the valuation form. Lyna Brahami compares it with the results of Add Fuel at the house and replies free of charge within 48 working hours.
About Add Fuel
Add Fuel is the Portuguese artist Diogo Machado, born in 1980 in Cascais. A graphic designer by training, he rebuilds the visual language of the traditional blue and white azulejo tile out of his own invented creatures, in ceramic panels, painted murals and print editions.
Read the full biography
A designer who went looking for a tradition
Diogo Machado was born in 1980 in Cascais, on the coast west of Lisbon, and still lives and works there. He took a degree in graphic design at IADE, the Institute of Visual Arts, Design and Marketing in Lisbon, spent several years in Portuguese design studios and eight months in Munich, and then left commercial work to paint full time.
He began under the full name Add Fuel to the Fire, and the early work looks nothing like what he is known for now: a dark but cheerful universe of slimy, eccentric, grinning creatures, assembled out of an obvious appetite for video games, comics, animation, science fiction, designer toys and the visual culture of the street. Those creatures never went away. They simply went into hiding.
The azulejo
The turn came in 2008, when he was invited to cover an entire building with a giant printed canvas for a festival in his home town. Wanting an image that would say something about being an inhabitant of that city, he worked through a list of Portuguese traditions, among them the Galo de Barcelos and the Arraiolos tapestries, and settled on the azulejo, the tin glazed ceramic tile that lines facades, churches and railway stations all over the country. He shortened his name to Add Fuel and has been working with tile ever since.
What he does with it is a sustained visual joke that rewards patience. From across a street his panels read as perfectly conventional blue and white tilework: symmetrical, tessellated, formally correct, the sort of thing that has covered Portuguese walls for centuries. Step closer and the ornament dissolves into his own cast of characters, eyes and teeth and tentacles locked into the geometry of the pattern, along with contemporary references that have no business being there. The effect depends on trompe l'oeil and on an almost obsessive attention to detail; the pastiche has to be convincing before the subversion can land.
He works in several formats at once. There are genuine ceramic panels of small and medium size, in which the tiles are real. There are large scale murals, painted freehand or through stencils, that imitate tile on surfaces that are nothing of the kind. And there are print editions, which is where most collectors first meet the work.
Walls and commissions
Add Fuel has shown in solo and group exhibitions and has taken part in most of the significant urban art events, from Leeds to Perth, from Los Angeles to Macau. In 2012 he made a ceramic mural some thirty metres long for the Walk and Talk public art festival at Ponta Delgada, in the Azores. In 2022 he painted for the Wynwood Walls in Miami, the mural park that has done more than any other single venue to move street art into a ticketed, collected context.
The commissioned side of his practice is long and varied, and reflects where he came from rather than where the fine art market would like to place him: Alfa Romeo, Burton Snowboards, MTV, Nike, Red Bull, Wired, the Lisbon urban art gallery programme and the designer toy manufacturer Toy2R are all on the list.
What comes to auction
His secondary market is young and thin, and it is spread across object types that have very little to do with one another. At the top are the unique ceramic tile panels, which are laborious, physically fragile and rarely offered. Below them sit works on paper and canvas, then the signed and numbered print editions, which are produced in reasonable quantity and are the most commonly traded thing he makes.
Then there are the toys. His background in designer vinyl never left him, and figures produced with toy manufacturers carry his patterning onto a moulded three dimensional form. These are manufactured objects in coloured editions, and they should be valued as designer toys with an artist's surface rather than as sculpture. For any of these the questions that matter are the format, whether the piece is genuinely glazed ceramic or a painted imitation of it, the edition size and number, whether the original box and paperwork survive, and the condition of the surface, since chipped glaze and scuffed vinyl both cost real money.
Exhibitions
- Cascais ArtSpace festival, Cascais ArtSpace2008
- Walk and Talk Public Art Festival, Walk and Talk2012
- Wynwood Walls mural, Wynwood Walls2022
Related artists and open lots
Comparable price band
€500
This band holds the middle half of the hammer prices this artist has realised at the house. A work of comparable quality has most often sold within it.
Selling a work by Add Fuel?
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Sources of the biographical facts
- LLB Auction catalogue (Proprietary), retrieved 30 August 2026
LLB Auction hammer prices exclude the buyer’s premium and VAT. They cover only the lots this house has offered.