Renault expect immediate engine step from fuel

Renault is expecting its Formula 1 engine to get a performance boost from next week's Spanish Grand Prix thanks to an upgrade from fuel supplier BP.

The works team and McLaren will have access to new fuel at Barcelona, but Red Bull will not.

Red Bull is the only F1 customer team not currently using the same fuel and oil supplier as its engine partner, having opted for ExxonMobil rather than BP/Castrol.

"The start of the European season now needs to see a consolidation of that performance," said Cyril Abiteboul, Renault's managing director.

"We hope this to be a move forward, but we also recognise that many other teams will bring upgrade packages too and Barcelona is well known to everyone."