Fuel Economy

 
Start-stop systems to soar in number over next decade

Start-stop systems to soar in number over next decade

Plug-in electric cars are slowly becoming more common, but internal-combustion engines will remain a significant presence on the world's roads for decades to come yet. That means automakers will continue trying to squeeze ever-greater efficiency out of these engines, making them more complex in the... read more

November 16, 2016 by -
 
Ford Mustang GT at 2016 MPG Marathon, U.K.

Ford Mustang is unlikely winner of UK gas-mileage marathon

The Ford Mustang isn't usually the first vehicle that comes to mind when thinking about fuel-efficient cars. But a new Mustang recently won the title of most-improved fuel... read more November 4, 2016 by


 
Fuel gauge

EPA reports show automakers meeting fuel-economy, carbon emission rules

Low gas prices and high sales of crossovers and SUVs have led critics of current U.S. emissions standards to question whether automakers can continue meeting those standards... read more November 3, 2016 by


 
Mercedes-Benz belt-driven starter generator (RSG)

New Mercedes engines get more complicated to meet emission rules

While it plans to launch 10 new electric cars by 2025, Mercedes-Benz is far from done trying to improve the efficiency of internal-combustion engines. The German luxury... read more November 1, 2016 by


 
2012 Volkswagen Up minicar (German model), road test, Catskill Mountains, NY, May 2012

Tougher testing for emissions may mean bigger engines, but why?

Stricter global emissions standards have led many automakers to downsize engines, but that trend may be about to reverse itself. Cutting displacement is a relatively... read more October 31, 2016 by


 
2017 Ford F-150

2017 Ford F-150 pickup gas mileage rises to 21 mpg combined

The 2017 Ford F-150 full-size pickup truck gets a slight fuel-economy bump this year, via the addition of a new 10-speed automatic transmission and an updated 3.5-liter... read more October 6, 2016 by


 
Infiniti VC-Turbo engine

Infiniti variable-compression engine: more complexity, incremental gains

To meet stricter global emissions standards, carmakers are trying to squeeze every last bit of efficiency out of internal-combustion engines. That has led Infiniti to turn to... read more October 6, 2016 by


 
Chris Grundler, director of EPA Office of Transportation and Air Quality [photo: EPA via Flickr]

EPA's emissions sleuth: the most powerful man you've never heard of

Current Corporate Average Fuel Economy standards require U.S. automakers to achieve a fleet average of 54.5 mpg (equivalent to roughly 40 mpg on the window sticker) by 2025... read more October 5, 2016 by


 
U.S. Capitol Building

Michigan representative: roll fuel economy rules back to 'reasonable' level

Right now, the debate over the future of Corporate Average Fuel Economy (CAFE) standards is in full swing. Today, they call for a fleet average of 54.5 mpg (or about 38 mpg... read more September 27, 2016 by


 
Elio Motors prototype at New York Auto Show press conference, Apr 2015

You know cars, trucks, and motorcycles, but what's an autocycle? (It's an Elio)

To say three-wheeled vehicles are rare in the North American car market would be an understatement. Traditionally, motorcycles have two wheels, and passenger cars and light... read more September 15, 2016 by


 
Gas pump

CAFE rules should stay as they are, auto-industry suppliers agree

The lobbyists for automakers have made their views on Corporate Average Fuel Economy (CAFE) standards through 2025 quite clear. The majority of carmakers would prefer to see... read more September 15, 2016 by


 
Portable Emissions Measurement Systems (PEMS) on a Peugeot 308

Study suggests every European diesel maker cheated on EU tests

The Volkswagen diesel scandal has thrown a bright spotlight on the way new cars and trucks are tested for compliance with emissions standards. The German carmaker's use of... read more September 9, 2016 by


 
2017 Mazda 6

First the wagons went away; are family sedans next to vanish?

For several decades, the station wagon was the default car choice for most U.S. families. But now those families clamor for SUVs instead, and wagons are virtually nonexistent... read more September 7, 2016 by


 
2017 Ford Fusion Hybrid

2017 Ford Fusion Hybrid and Energi: how engineers increased fuel efficiency

Carmakers regularly tweak their powertrains to boost fuel efficiency or improve performance and drivability. Changes to EPA test cycles for 2017 mean that the agency's... read more September 2, 2016 by


 
2017 Ford F-150

2017 Ford F-150 with 10-speed automatic to arrive at dealers next month

Beginning next month, buyers will be able to order the 2017 Ford F-150 full-size pickup truck with a new 10-speed automatic transmission. The transmission—co-developed... read more September 2, 2016 by


 
Fuel gauge

Three big automaker myths about CAFE: busted by Consumers Union

The recent release of a "Technical Assessment Report" on automakers' efforts to meet Corporate Average Fuel Economy (CAFE) standards has kicked off a debate over whether... read more August 29, 2016 by


 

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