It was all about the long runs again on day two of the final preseason test in Bahrain, though for Red Bull some signs of hope emerged.
As Sergio Perez again went quickest on the day for Force India, Daniel Ricciardo went against the race simulations most were doing instead completing some short qualifying style runs in the RB10.
And these proved to be very successful as the Australian knocked over two and a half seconds off the team's best time so far at the Middle East circuit setting a 1:35.743; just under one-and-a-half tenths off Perez's best.
There was no sign of the cooling issues seen on Thursday either, which considering the team were putting more stress on the Renault V6 unit - so troublesome throughout the testing so far - as well as a final stint well into the teens in the final half an hour, the day was very encouraging.
However, with other teams much further ahead than Red Bull in terms of preparation for the season opener in Australia in two weeks time it will fall on Sebastian Vettel to show the world champions can complete longer stints at a decent pace, trouble-free before the concerns surrounding the new car will begin to ease.
Perhaps adding to the positivity for the Anglo-Austrian team is the fact that the mighty Mercedes-powered teams also had problems on Friday.
Mercedes caused the first red flag of the day within the opening 30 minutes and while the team recovered and Lewis Hamilton completed 89 laps, his day was then cut short by gearbox trouble hitting the W05, while McLaren too lost out on running time after Jenson Button's MP4-29 lost drive in the morning.
While Red Bull had some success it wasn't shared throughout all the Renault powered teams.
Lotus' day was cut short by a car failure which resulted in a fire out on the circuit while Caterham too also had a fiery end to their day in the final hour.
As mentioned the day was remained more about completing longer race-style runs than setting fastest lap times, Mercedes, Ferrari and other teams started and got well into their programmes before red flags cut them short. However, it was the second placed man on the timings, Ferrari's Fernando Alonso, who achieved the most laps.
The Spaniard put 122 laps on the clock of the F14-T, with the pace-setting Perez second with 108. Williams and Sauber also passed the century mark and though not quite on the same levels, Marussia completed a new personal best of 75 laps as did Red Bull with 66.
In what was the most laps achieved overall in the single day only Lotus failed to break 50 and from Perez in P1 to Ericsson in P11 the gap was just under seven seconds.
A very positive day for most and particularly for Red Bull fans and now for some their preseason duties are over as they hand their cars over for the final two days of running before Australia on Saturday and Sunday.
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