After every session a Porsche 919 Hybrid was on top of the time sheets.
Kimi Raikkonen, eleventh at the time in 1.42.173, was unable to make the cut into the top ten.
Former Formula 1 racer Franck Montagny has been banned from motorsport for two years following his positive drug test last November.
More caution laps than green flag laps make for a disappointing race.
Daniel Ricciardo: "We’re behind Mercedes and Ferrari, but we are ahead of the Williams..."
Marcus Ericsson: "It has been a great weekend so far. I was able to finish every session in a top ten position,"
Valtteri Bottas: "I am a little disappointed with how the day turned out."
Aric Almirola, David Ragan tangle during first morning practice session at Martinsville Speedway.
Dramatic afternoon session in Sepang sees Lewis Hamilton and Nico Rosberg take first and third position during qualifying for tomorrow's Malaysian Grand Prix.
Lewis Hamilton will start from pole position for the Malaysian Grand Prix at Sepang in a rain-affected session.
Mercedes technical chief Paddy Lowe has admitted his amazement at Lewis Hamilton’s pole position lap at Sepang, which was meant to be a “trial lap”.