While BP has fixed the problem with its gasoline in the Chicagoland, Indiana, and Wisconsin regions, the drama isn’t over. The company has already received 6,500 claims from drivers who had to have car repairs due the effects of the bad gas.According to the Chicago Tribune, the mechanical issues were primarily to do with hydrocarbon molecules that did not burn well, causing spark plugs and fuel injectors to become dirty and ineffective. Repairs for these sorts for problems range from $300 to $1200. BP recalled some 2.1 million gallons of gasoline last week, after motorist reported problems with the fuel. BP eventually tracked the issues to its Whiting, Indiana facility, and subsequently corrected them.