What Is F1's Sustainable Fuel?
Team radio calls out tire degradation and fuel-saving modes constantly, but there's a bigger fuel story sitting underneath every one of those messages: the fuel itself changed. From 2026, the liquid burning inside every power unit on the grid is no longer derived from crude oil at all — it's a purpose-built, fully sustainable blend that F1 and its fuel suppliers spent years developing, and it's reshaping both the sport's environmental pitch and its cost sheet.
F1 Sustainable Fuel by the Numbers
- 100%: the sustainable content mandated in F1 fuel from 2026, up from E10's 10% sustainable-ethanol blend.
- 2030: the target year for F1's sport-wide Net Zero Carbon commitment.
- $170–$225: Aramco's disclosed cost per liter for the 2026 fuel it supplies to Aston Martin.
- $22–$33: the approximate cost per liter of the outgoing E10 fuel used through 2025 — up to 10x cheaper than the 2026 blend.
- 39: surrogate fuel blends tested in single-cylinder F1 power units during development, according to F1's own reporting.
- 2: Aramco production plants supplying the fuel, one in Saudi Arabia and one in Spain.
- ~2 billion: cars projected on the world's roads by 2030, with only around 8% expected to be pure battery-electric — F1's stated reason for building a drop-in fuel rather than one unique to racing.
What "100% Sustainable Fuel" Actually Means
F1's 2026 regulations define three acceptable feedstock categories for the fuel's sustainable components: non-food biomass (organic material that can't be used for human consumption), renewable feedstock of non-biological origin (essentially e-fuels, built by combining captured carbon with hydrogen produced using renewable energy), and municipal waste. Fuel suppliers can blend these sources however they like as long as the finished product clears the FIA's technical specification and is independently certified through the Sustainable Racing Fuel Assurance Scheme (SRFAS), which traces the fuel's supply chain and verifies its greenhouse-gas footprint before it's allowed anywhere near a car.
The Carbon-Neutral Loop, Explained
F1 Managing Director of Motorsports Ross Brawn has described the goal in blunt terms: "the carbon circle is completely neutral, so the carbon utilised to produce that fuel is the same quantity as the carbon emitted" when it burns. In practice that means the fuel's carbon footprint is accounted for at the production stage rather than the tailpipe — carbon captured from the air or diverted from waste streams roughly offsets what the engine puts back out. It's a different mechanism from an electric power unit, which emits nothing locally at all, but it lets F1 pursue a decarbonization path without redesigning the combustion engine that still defines the sport.
From E10 to Full Sustainable: F1's Fuel Timeline
| Season | Fuel | Sustainable content |
|---|---|---|
| Through 2021 | Standard high-performance racing fuel | Minimal |
| 2022–2025 | E10 (90% conventional, 10% ethanol) | 10%, described by F1 CTO Pat Symonds as "entirely sustainable" ethanol |
| 2026 onward | Advanced sustainable fuel | 100%, from biomass, e-fuels or municipal waste |
Why It's So Expensive
Aramco's disclosed $170–$225 per liter for the 2026 fuel dwarfs the roughly $22–$33 per liter teams paid for E10 — and some industry estimates that fold in amortized development costs run even higher, since F1's entire fuel program is produced in tiny batches compared with the billions of liters refined for road fuel each year. A car's 75-liter race tank means that gap adds up fast across a season of practice, qualifying and race running, though fuel costs are reported to sit outside F1's $215 million team budget cap, easing some of the financial pressure the switch would otherwise put on the grid.
Who's Supplying the Fuel
Aramco, the Saudi Arabian energy company, is producing 2026 fuel for Aston Martin from two plants — one in Saudi Arabia and one in Spain — after running 39 surrogate blends through single-cylinder F1 power units during development. Other manufacturers, including Zero and ExxonMobil, are developing competing sustainable blends for the teams they supply, each free to fine-tune its own formula within the FIA's specification for a competitive edge, the same way engine manufacturers tune the rest of the power unit within its own rulebook.
Why It Matters Beyond F1
F1 has pitched the drop-in requirement as the whole point of the exercise: with roughly 2 billion cars projected on the world's roads by 2030 and only about 8% of those expected to be pure battery-electric, a sustainable fuel that works in an existing, unmodified engine can theoretically decarbonize far more of the global fleet than switching a single racing series to electric power ever could. Whether that scales beyond a $170-a-liter racing fuel to something a regular driver can afford at the pump is the real open question the sport is still working through.
Frequently Asked Questions
What is F1's sustainable fuel?
F1's sustainable fuel is a lab-formulated "drop-in" fuel made entirely from non-food biomass, non-biological renewable feedstocks (e-fuels built from captured carbon and hydrogen), or municipal waste, rather than crude oil. It's designed to work in an unmodified internal combustion engine, and its carbon cycle is neutral: the CO2 released when it burns roughly equals the CO2 captured or displaced in producing it.
When does F1 switch to 100% sustainable fuel?
The mandate takes effect for the 2026 season, alongside F1's new power unit regulations. It's a jump from the E10 fuel used since 2022, which blended 10% sustainable ethanol into 90% conventional fuel.
Why is F1's 2026 fuel so expensive?
Aramco has disclosed a cost of roughly $170 to $225 per liter for the 2026 fuel supplied to Aston Martin, versus about $22 to $33 per liter for the outgoing E10 blend — up to 10 times more. The price reflects a fuel produced in small, certified batches with heavy R&D, dyno testing and supply-chain tracing costs, not a simple raw-material price.
Can F1's sustainable fuel be used in road cars?
That's the point of making it a "drop-in" fuel: F1 designed it to work in any existing unmodified combustion engine, not just an F1 power unit. With roughly 2 billion cars projected on the road by 2030 and only about 8% expected to be pure battery-electric, F1 has framed the fuel as a decarbonization path for the existing global fleet, not just its own grid.
The Bottom Line
F1's 2026 sustainable fuel mandate is a genuinely rare case of the sport spending heavily on something that never shows up in the lap times: a fuel that costs up to 10 times more per liter than what it replaces, purely for a carbon-neutral production loop. It ties directly into two other numbers fans already argue about — the fuel bill reportedly sits outside the $215 million budget cap teams operate under, and the fuel itself feeds the same hybrid power unit that's been redesigned around a much bigger electrical contribution for 2026. Both changes reflect the same push: keep the combustion engine at F1's core while making everything around it dramatically cleaner. For what a season of that engineering actually costs a team beyond the fuel bill, our F1 car cost breakdown covers where the rest of the budget goes, and our 2026 F1 calendar covers every one of the 24 rounds burning through it. That fuel bill comes out of the same revenue pool the sport pays back to teams every year — our F1 prize money guide covers how unevenly that payout is actually split.