The need for an open fuel standard could not be any clearer as we have seen the rising price of oil in recent years.
At least two vehicles now escape both the tax and the fuel standards.
Democrats and environmental groups have said that the auto industry made a similar argument when fuel standards were first proposed in the 1970's.
The Big Three oppose any increase in these fuel standards.
They were also told that the plan would address "the use side," which could indicate a move to improve fuel standards, the aide said.
After years of resistance, automakers agree an increase in fuel standards is inevitable.
Mandating tough fuel standards may not be the most fair or effective way to save oil.
California gave notice in September that it would issue stricter fuel standards this fall.
Given present technology, auto manufacturers would have to make smaller cars to meet tougher fuel standards.
The Chrysler Corporation was not affected because its cars met the fuel standards for those years.