Renault targets immediate engine step with new fuel

The works team and McLaren will have access to new fuel in Barcelona, but Renault's other customer Red Bull will not.Red Bull is the only F1 customer team not using the same fuel and oil supplier as its engine partner, having opted for ExxonMobil rather than BP/Castrol.Renault's engine performance still trails that of Mercedes and Ferrari and a major upgrade is not expected until an ... Keep reading