The vast majority of Americans are concerned about gas prices (85%) and U.S. reliance on Middle East oil (87%), and three out of four say it’s important to increase vehicle fuel economy, a poll Monday reveals.

“Pain at the pump, along with the country’s oil import dependence, has produced a growing consensus that the federal government should substantially increase fuel economy standards,” said Mark Cooper, research director of the Consumer Federation of America, a non-profit consumer advocacy group that has commissioned a series of surveys on the issue.

Its latest survey, taken April 14-18 by Opinion Research Corp., found that most Republicans and Democrats alike agree the U.S. government should require car companies to boost fuel economy. Increases that could double the current 30 miles-per-gallon standard are being considered by the Environmental Protection, the National Highway Traffic Safety Administration and the California Air Resources Board.

“Actual sales data is very clear: Consumers are willing to pay for more fuel-efficient vehicles. In addition, significant fuel economy improvements are well within the reach of the car companies,” said Jack Gillis CFA’s spokesman and author of The Car Book.

USA TODAY’s Chris Woodyard reports that two new survey show the best-selling hybrid, the Toyota Prius, is in such demand that its average sales price is higher than its original price.

CFA’s poll of 2,000 adults suggests concern about gas prices may now a bit lower than in March, when it hit a record 90%, but is still much higher than a year ago when it was 58%. It has a margin of error of plus or minus two percentage points.