Sebastian Vettel narrowly edged out Fernando Alonso to set the fastest time during second practice at Barcelona.
Vettel's time of 1:22.808s was 0.017s quicker than Alonso as the drivers were able to undertake running on a dry track following a damp first practice session.
Mark Webber was third, followed by Kimi Raikkonen and Felipe Massa.
Lewis Hamilton recovered from an early spin at Turn 12 to set the sixth fastest time, with team-mate Nico Rosberg in seventh.
Adrian Sutil and Paul di Resta finished in the top 10, with the Force India drivers split by the impressive Jean-Eric Vergne. The Frenchman was third fastest in first practice, following that time up with ninth in the afternoon.
Di Resta's afternoon came to a premature end when his left rear tyre delaminated exiting the final corner. The tyre appeared to lose tread in a similar fashion to Lewis Hamilton during practice in Bahrain.
Daniel Ricciardo was eleventh, ahead of the two McLarens of Jenson Button and Sergio Perez.
Teams focused on long runs during the final 40 minutes of the session. Red Bull, Ferrari and Lotus appeared to be relatively similar, although unknown fuel loads make direct comparisons difficult.