McLaren has been forced to conclude its penultimate day of pre-season F1 testing early at the Circuit de Catalunya following an oil leak.

The team had hoped to get more significant mileage under its belt after reaching a landmark 101 laps in Jenson Button's hands yesterday.

However, despite a positive start to the day as Kevin Magnussen returned to the cockpit in place of the sidelined Fernando Alonso, the MP4-30 developed an oil leak early in the afternoon, forcing McLaren to close the eventually shutters for the day.

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Prior to the problem, Magnussen had used the soft tyres to put in McLaren's fastest lap of the winter so far with a 1min 25.225secs, but this issue represents yet another set-back for a team that has now completed just 349 laps (1,600kms) over 11 days of pre-season testing, which just one more day remaining.

Button is expected to return to the car tomorrow before attention turns to the Australian Grand Prix opener.


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All of Mclaren-Honda's problem is normal for a new engine. if this is the 2014 pre season, nobody will even consider this a news. They cannot be compared to engines that already did a year of racing plus new upgrades. The Honda has the power, because Alonso did his 1:25's on a reduced power, they only need reliability right now.