Red Bull still not sure on KERS for Shanghai

Red Bull will not definitely still be running KERS when qualifying and the grand prix are run in China.

The dominant team did not use the energy-recovery technology in Australia for reliability fears, and the system did not run without problems on debut in Malaysia a week ago.

Sebastian Vettel, who has won both 2011 races so far from pole, said he hopes his RB7 is equipped with the power boost system for the whole Shanghai weekend.

"It makes sense to run KERS and it’s our target obviously," he said on Thursdsay.

"Yes, we will be using it tomorrow –- and Saturday and Sunday, I hope," the German added.