Fuel economy in the US drops from recent high

May 03, 2013

Fuel economy of new vehicles sold in the U.S. slipped last month for the first time this year, say researchers at the University of Michigan Transportation Research Institute.

Average fuel economy (window-sticker values) of cars, , minivans and SUVs purchased in April was 24.5 mpg, according to UMTRI researchers Michael Sivak and Brandon Schoettle.

"This value is down 0.1 mpg from the record high reached in March, likely reflecting the recent decrease in the price of gasoline," Sivak said. "Despite this small drop, the fuel economy is up 4.4 mpg since October 2007—the first month of our monitoring."

In addition to average , Sivak and Schoettle issued their monthly update of their national Eco-Driving Index, which estimates the average monthly emissions generated by an individual U.S. driver. The EDI takes into account both the fuel used per distance driven and the amount of driving—the latter relying on data that are published with a two-month lag.

During February, the EDI improved to 0.82 from 0.83 the month before (the lower the value, the better). The index currently shows that emissions of per driver of newly purchased vehicles are down 18 percent, overall, since October 2007.

Explore further: First of four Fukushima reactors cleared of nuclear fuel

More information:

add to favorites email to friend print save as pdf

Related Stories

Fuel economy now at all-time high

Feb 06, 2013

Fuel economy of new vehicles sold in the United States reached a record-high 24.5 mpg last month, say researchers at the University of Michigan Transportation Research Institute.

Fuel economy remains at all-time high

Mar 08, 2013

(Phys.org) —For the second month in a row, fuel economy of new vehicles sold in the United States remains at a record high, say researchers at the University of Michigan Transportation Research Institute.

Vehicle fuel economy stays the same in July

Aug 03, 2012

(Phys.org) -- After a three-month drop, fuel economy of all new vehicles sold in the United States remained unchanged in July, say researchers at the University of Michigan Transportation Research Institute.

Fuel economy slipped as gas prices dipped throughout April

May 09, 2012

(Phys.org) -- After recently topping 24 miles per gallon for the first time ever, fuel economy of all new vehicles sold in the United States slipped back below that mark last month, say researchers at the University of Michigan ...

Fuel economy at all-time high, researchers find

Nov 06, 2012

(Phys.org)—Fuel economy of all new vehicles sold in the United States is at its highest level ever, say researchers at the University of Michigan Transportation Research Institute.

Recommended for you

The state of shale

Dec 19, 2014

University of Pittsburgh researchers have shared their findings from three studies related to shale gas in a recent special issue of the journal Energy Technology, edited by Götz Veser, the Nickolas A. DeCecco Professor of Che ...

Website shines light on renewable energy resources

Dec 18, 2014

A team from the University of Arizona and eight southwestern electric utility companies have built a pioneering web portal that provides insight into renewable energy sources and how they contribute to the ...

Better software cuts computer energy use

Dec 18, 2014

An EU research project is developing tools to help software engineers create energy-efficient code, which could reduce electricity consumption at data centres by up to 50% and improve battery life in smart ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

Doug_Huffman
1 / 5 (1) May 03, 2013
The energy content of a gallon of fuel, as in "miles per gallon", is no longer constant, perhaps not even relevant.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.