tranquility2k9
Podium Finisher
Button / McLaren definitely seem to be refueling their car in-between long runs. I'm pretty sure this morning they did 2 single lap runs on 2 different sets of hard tyres. Then following that fueled the car up and did 2 long runs consisting of 11 - 12 laps. The times were so similar that it suggests he refueled for the second run back to the same fuel level as the first run. Following this, he then has done two 13 lap runs on soft tyres. I imagine again, from the similar times he has been refueled in-between. This would make perfect sense as I assume they would want to back-to-back any setup changes and the best way to do this is to have the same amount of fuel and same tyre compound with the same number of laps done on it. Whereas today it is quite obvious, lots of people have suggested both Button and Hamilton were also refueled at some points during their supposed "race simulations" - both were taken back into the garage a couple of times whereas Vettel and Webber were not during theirs. I think this probably explains some of the time difference as I doubt they are really 1 - 1.5 seconds behind Red Bull as BBC's Andrew Benson suggests from his "number crunching".