Technical edge for Maranello: Ferrari and Audi’s 2026 power units cleared by FIA fuel check. Ferrari and Audi secure a crucial advantage ahead of the 2026 F1 season.

F1 2026 | Ferrari and Audi gain key edge as FIA approves fuel suppliers

While rival teams are still chasing technical solutions ahead of the new regulations, Ferrari and Audi have secured an advantage that should not be underestimated. The technical battle toward final homologation of the new Power Units also runs through fuel development. According to Autoracer.it, only two suppliers have so far received official approval from the FIA: Shell, partner of Ferrari, Haas and Cadillac, and Castrol, linked to the Audi project.

This is far from a minor detail. With the introduction of the new regulations and an increasing focus on more sustainable and higher-performance fuels, homologation is a fundamental requirement before the start of the season.

For Ferrari, this represents an important confirmation. The work carried out together with Shell allows the Scuderia to arrive at the Bahrain testing session with a technical base already approved by the Federation. This stability also extends to customer teams Haas and Cadillac, both covered by the same fuel supplier.

Castrol, meanwhile, has obtained homologation as a partner of the Audi project, ensuring that the German manufacturer heads into the season with regulatory clarity on the fuel front.

Why this could become a problem for others

The situation is different for other suppliers still awaiting approval. The regulations state that, in the event homologation is not granted within the established deadlines, teams will not be disqualified from races. However, they will be required to use a temporary fuel until the approval process is completed. This stopgap solution could impact both performance and data correlation during a crucial development phase.

When it comes to fuel development, Mercedes appears to be the top team facing the most difficulties at this stage. The situation is being closely monitored in the paddock, as fuel is an integral part of the overall performance of the Power Unit and can influence power delivery, efficiency and reliability.

At a time when every technical detail can shift the competitive balance in Formula 1, having homologation secured already represents a clear competitive advantage. Ferrari, its customer teams and Audi, at least on this front, head into the new F1 era with one more certainty in their pocket.

As the 2026 season approaches, the ability to marry chemical innovation with mechanical engineering will likely define the early leaders of the pack. Ferrari and Audi have successfully navigated the bureaucratic and technical hurdles of the new sustainability criteria, ensuring their Power Units can run at full song from the very first green light. For the likes of Mercedes and their partners, the race against the clock continues, proving that in Formula 1, the battle for the podium starts long before the cars ever reach the grid.