fuel efficiency


Sharing the Road to Zero Emissions, Part 1: More ZEVs Provide Customer Choice

November 6, 2015 by Morry Markowitz

With carmakers bringing new technologies to the marketplace, it’s time to end the confusion about electric vehicles. Debates have raged about the merits of battery electric vehicles and fuel cell electric vehicles, with strong arguments for one option over the other, as if the market was a zero-sum game.[read more]


It is Time to Stop Measuring Fuel Efficiency in Miles Per Gallon

November 3, 2014 by Robert Wilson

Fuel Efficiency and Measurement

Due to the absurdities of history, America uses what is essentially a medieval unit system that appears completely untouched by the scientific revolution. Why such units have not been recognised as a menace to public understanding - and hence abandoned - is a mystery.[read more]

Tesla is the World's First Digital Car

October 29, 2014 by Edward Dodge

Tesla's Digital Car

Elon Musk described the new Tesla Model D as a digital vehicle compared to conventional ICE autos which are analog machines. The Model D is an iterative upgrade of the Model S, but it presents two significant feature sets that demonstrate how the auto world is moving from the analog to the digital age.[read more]

U.S. Fuel Economy Hit New Highs With 2013 Models

October 13, 2014 by Christina Nunez

Fuel Economy Records

American cars are using less gas per mile and emitting less carbon dioxide than ever before, according to a government analysis released Wednesday. The average fuel economy of 2013 models is 27.6 miles per gallon for cars and 19.8 miles per gallon for trucks, both of which are all-time highs.[read more]

Lasers, Circuit Boards, and a $30 Gizmo: Innovative Solutions to the Methane Problem

September 20, 2014 by EDF Energy Exchange

Methane Problems and Solutions

The technologies we see today didn’t all start out in the forms we’re used to. The phones we carry in our pockets used to weigh pounds, not ounces. Fast forward and now we're looking at a drunk-driver-and-alcohol sensor that was converted into a methane leak detector.[read more]

Slight Uptick in U.S. New Vehicle Fuel Economy in July

August 11, 2014 by Tom Schueneman

Fuel Economy Improvement

The University of Michigan Eco-Driving Index (EDI) estimates average monthly greenhouse gas emissions from an individual U.S. driver. The lower the index value the better. The EDI consists of fuel economy data and miles driven, the later of which is published with a two-month lag time.[read more]

Are You Driving the Right Car for an Oil Crisis?

July 31, 2014 by Amy Myers Jaffe

With further escalation in hostilities in Iraq as the militant group, the Islamic State of Iraq and Syria tries to lock down more oil and gas assets, it is hard not to worry that an oil crisis might be looming. So far, the looming global instability has not ratcheted up US gasoline prices.[read more]

Average Vehicle Fuel Economy at Record High

June 6, 2014 by Tom Schueneman

Fuel Ecnomony Improvement

According to the University of Michigan Transportation Research Institute the average fuel economy (the number given on the window sticker) for new vehicles hit a record high in May of 25.6 miles-per-gallon, a 0.4 mpg rise from April. Vehicle fuel efficiency has increased 5.5 mpg since October of 2007.[read more]

China Promotes Both Fuel Efficiency and Alternative-Fuel Vehicles to Curb Growing Oil Use

May 17, 2014 by U.S. EIA: Today in Energy

China Curbing Oil Use

Unprecedented motorization in China has led to increases in oil demand and oil imports. In response to growing oil imports, the Chinese government is adopting a broad range of policies, including improvements in the fuel economy of new vehicles and the promotion of alternative-fuel vehicles.[read more]


Can Switching Heavy Duty Trucks to Rail Transport Reduce Carbon Emissions?

July 14, 2013 by John Miller

HD Trucks and Carbon Reduction

President Obama has included increasing heavy duty vehicle fuel efficiency standards in his recent climate policy speech. Are there more effective alternatives to further reducing heavy duty vehicle transport carbon emissions?[read more]

The Newest Hybrid Cars to Reduce Environmental Impact

April 30, 2013 by Tom Schueneman

newest hybrids/Wikimedia Commons

While cars are an everyday necessity and convenience, they’re not doing the environment any favors. Here we’ll focus on some of the hybrids and electric vehicles that either greatly reduce or eliminate fuel emissions altogether.[read more]

Shell Eco-Marathon Fuel Efficiency Race Kicks Off in Houston

April 7, 2013 by Marianne Lavelle

Start your fuel-efficient engines...

More than 1,100 students from 112 schools in the United States and four other countries converged on Houston to show it’s possible to design and drive vehicles that use far less fuel than cars on the road today.[read more]

How green is your EV?

April 18, 2012 by Michael Giberson

On Monday the Union of Concerned Scientists released an analysis estimating the MPG equivalence of electric vehicles. The point of the analysis is this: taking as given an objective of greenhouse gas emission reduction, how do electric vehicles compare to internal combustion vehicles in that dimension? To do such an analysis requires...[read more]

Cutting the Cost of Gasoline: It's About Gallons, Not Prices

March 7, 2012 by Deron Lovaas

Everyone is fixated on the numerator in the price-per-gallon equation, especially the media and politicians. I would argue, fellow consumers, that they are dead wrong to turn a blind eye to the denominator. It calls out for attention, since we can do little to nothing about prices. Photo credit: istockphoto/Talaj Still, let's get...[read more]

Should the U.S. government play a role in American energy use?

February 8, 2012 by Josh Freed

One of the big questions on the campaign trail today is whether there should be a government role in America's use of energy. The reality is that energy is one of the most regulated sectors of our economy—the government already plays a huge role driving innovation and investment. The question we should be asking is: since the government...[read more]