1.   Gas is a very efficient fuel.

2.   There is one-third less oxygen for efficient fuel combustion, and cold layers of air in winter trap toxic emissions with thermal inversions.

3.   A Stirling engine can be substantially more fuel efficient, and less polluting, than traditional internal combustion engines.

4.   Even low-volume manufacturers must show they have taken steps to make their cars as fuel efficient as possible.

5.   If the federal government wants Americans to buy more fuel efficient vehicles, it should give them a tax credit to do so, Shosteck said.

6.   On the contrary, it provided efficient fuel for his political savvy and his will to prevail on the battlefield.

7.   Proposals said to be considered include service cuts, overhead cost reductions, using more fuel efficient equipment and finding ways to increase revenues.

8.   So buying a car or truck that suits your needs AND is fuel efficient is a big help.

9.   The barriers to competition have meant less pressure on Detroit to make its models cleaner and more fuel efficient, two strengths of Japanese car makers.

10.   The Bush administration is opposed to setting new federal mandates for more efficient automobile fuel standards, which are opposed by the auto industry.