The four F1 manufacturers have been hard at work developing new fuels with their suppliers since the rule was announced, while also optimising their power units to work more effectively with the higher bio content.
Combustion has been one of the main areas of focus.
The change to E10 fuel was one of the key reasons why Red Bull fought hard to retain full development support from Honda over this winter and into the new season.
“As in every year, when we’re developing the fuel, it’s a partnership between ourselves and Petronas to make sure that the fuel is enjoying the PU experience, and the PU is enjoying the fuel experience,” Mercedes’ High Performance Powertrains managing director Thomas said in a team video.
“The change this year to go into the E10 is probably the largest regulation change we’ve had since 2014.
“So it was a sizeable undertaking to make sure that we really developed that fuel, and the number of candidates that we had, the single cylinder running, the V6…
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