Vettel failed to conduct a simulation of the race

The second day of testing in Barcelona, Red Bull Racing hoped to simulate the race with Sebastian Vettel, but was prevented by reliability issues.
First, the German had to interrupt a series of circles, and then he interrupted the other, causing the appearance of red flags. However, commenting on the results of the day, the reigning world champion said that he did not see any big problems...
Sebastian Vettel: "Today prevented reliability issues - we failed to reach the planned distance, but it's better if such difficulties arise on the tests, but not in Australia. Nothing dramatic, just a few minor problems.
I had to stop the car in the garage when engineers noticed a small loss of pressure in the hydraulic system, and we needed to find the cause. Stop the machine in the evening led to the emergence of red flags, and I could not continue because the session has ended.
The balance of power? While the General problem is serious tire wear. I struggled to make tyres allowed to travel a greater distance, but the time on the wheel sharply deteriorated. This may be due to cool weather, but we cannot say that today was too cold. On the balance of hard to judge, now the dominant factor - rubber, but I think we are in good shape or very close to it."
Tomorrow Vettel on the tests Red Bull Racing will replace mark Webber...