11.   But as the Midwest grapples with introduction of new fuel, coupled with shortages caused by pipeline troubles, the Bay Area looks instead like a model of efficiency.

12.   But if he is brought back to Mexico for trial, Cabal could add explosive new fuel to several scandals.

13.   But now, videos may be giving new fuel to the midnight movie.

14.   But officials found that converting them was one thing, and getting them to run on the new fuel was another.

15.   But the fresh findings reported this week bear directly on the puzzle, and add new fuel to the often controversial debate about the origin of life on Earth.

16.   But the cars did well, despite lingering suspicions that blamed the new fuel for all sorts of unrelated automotive maladies.

17.   But the latest run-up has been accelerated by the scramble to introduce a new reformulated fuel in most large metropolitan areas.

18.   But the US Environmental Protection Agency ran into scattered resistance to the new fuel almost immediately.

19.   But the Senate votes were widely viewed as a major victory for the auto industry, which had lobbied intensely against the proposed new fuel mileage standards.

20.   DaimlerChrysler issued a statement saying it welcomed the Senate vote and would work with the federal government on developing new fuel standards.