It didn't take much effort to find the source.AR3-GP wrote: ↑12 Jul 2026, 17:34I don't find this story to be believable. There are no sources.ispano6 wrote: ↑12 Jul 2026, 05:34According to Formula1.it/F1-gate, Shell had developed bespoke fuels for Ferrari and Cadillac separately, with Ferrari finding that Cadillac's version of SHELL fuel yielded 5-6 more horsepower. Thus they switched to using Cadillac's blend instead.
https://f1-gate.com/ferrari/f1_95746.html
Here's the source:
https://www.formula1.it/news/31608/1/es ... -inatteso-
If Cadillac developed this fuel, I wonder how Ferrari was "allowed" to take "cues" from it? Would Shell be guilty of sharing Cadillac's IP?But on the subject of petrol, an interesting background was suggested to us by a source close to the red. At the beginning of the season, it seems that Shell had approved its fuel specification for the Scuderia, just as Cadillac had prepared its own version, following the instructions of the team and the supplier.
The latter, presented to the Prancing Horse, the conditional is a must, would have shown to guarantee a plus of 5-6 horsepower compared to the one designed for the factory team. Which is why the red engine engineers would have taken note of this "involuntary help" from the American team and submitted the specification to Shell to "take a cue", so as to equip the SF-26 unit with an FIA-approved petrol capable of guaranteeing the same level of performance.

