WHITING, Ind. – BP says the size of its unleaded gasoline recall is now more than twice as large as previously reported, involving 4.7 million gallons distributed as far as southwestern Ohio and southern Indiana.

BP spokesman Scott Dean said Wednesday the gasoline was distributed from terminals in Whiting, Indianapolis, suburban Chicago and suburban Milwaukee. One tanker went to a station in Camden, Ohio.

An interactive tool at http://bpresponse.com shows the gasoline refined in Whiting also reached stations as far south as Bloomington and Columbus.

The company believes the fuel contained high levels of a polymer residue that could cause hard starting, stalling and other drivability issues. Dean said BP has begun processing nearly 10,000 claims from customers whose vehicles were affected, mostly in Indiana and Illinois.