Ethanol Questions Fuel a Pushback Over Regulation Changes

As the Bush administration winds down, a controversial energy matter is continuing to stoke debate, largely behind closed doors, among lobbyists, lawmakers, and federal officials: whether to allow motor vehicles to use gasoline containing higher blends of ethanol.

Representatives of several public health, environmental, and manufacturing groups met last week with the Bush administration’s Office of Management and Budget and asked that more testing be done on car engines before federal ethanol limits are changed, warning that the impact of such an action upon consumers and the environment is not yet fully known.

The question of whether cars can safely run on higher blends is a murky one. At the moment, federal law allows gasoline used in regular cars to contain no more than 10 percent ethanol. The ethanol industry says the proportion could go higher