Pirelli warns drivers against wet tire gamble (GMM) Pirelli has warned drivers not to risk keeping full wet tires on their cars at Sepang while they wait to switch to slicks.
With rain likely to play a role this weekend, the official tire supplier's chief Paul Hembery said drivers should switch immediately to intermediates as soon as the track is no longer very wet.
Previously, with F1's departed official supplier Bridgestone, drivers could try to make their wet tires work on a drying track and thereby avoid making an extra pitstop before changing to slicks.
"I don't believe they will be able to do rain (tires)-to-slick, because the rain tire is very much a rain tire and doesn't operate well on drying tracks and will blister very quickly," he is quoted by AP.
"You don't want to be on a dry track with the full wets," warned Hembery.
His comments follow Pirelli's private testing with a Toyota and Pedro de la Rosa last week at Istanbul, where two of the three days of running were wet.
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