Alt Fuels

CARB is offering carmakers a grace period on non-compliance or defeat devices—before higher fines and a new lab to sniff out cheats next year.

Concern over an ethanol downturn, possibly exaggerated by EVs, has both campaigns—and Congress—pandering to the Corn Belt.

FCA is recalling Jeep Grand Cherokee and Ram 1500 models with the EcoDiesel V-6 for an engine-stalling issue, fixed with a software update.

Until the Jeep Wrangler 4xe plug-in hybrid arrives, the Wrangler EcoDiesel is the high-mileage off-road leader. Is it eco enough?

Mercedes and parent company Daimler AG will pay $1.5 billion in penalties, as it continues to priorities Europe over the U.S. for cleaner EVs.

The House version of the new transportation infrastructure bill incorporates some of the spirit of the Green New Deal.

McLaren is planning to give synthetic fuels another try, although it knows that they won't replace battery-electric technology at this point.

Will the corn ethanol industry survive a year when refiners are holding back and gasoline pump prices drop as low as $1 a gallon?

With the addition of an EcoDiesel V-6 engine achieving an EPA 29 mpg highway, the Jeep Wrangler is no longer a gas-guzzler.

Despite controversies over a formulation that adds to smog issues, a Trump push for more E15 gas has been stymied by state rules and costly station retrofits.

Tech has lagged for light-duty engines designed to use gaseous fuels, like natural gas, propane, and biogas; an EU project has aimed to address that.

At least one startup may be getting close to scaling up fuel production with carbon captured from the air. But burning the fuel would still pollute.

President Donald Trump is expected Tuesday to direct the EPA to lift the seasonal ban on higher-ethanol E15 blends of pump gasoline linked to summer smog issues. The move has been anticipated for months. This timing for it, according to Reuters, is aimed at helping Republican candidates in...

Algae-based biodiesel has been hyped in the past as a renewable fuel that can be produced here in the U.S., lowering greenhouse-gas emissions without displacing food crops or taxing water supplies. And yet it still hasn’t arrived in any significant way. There’s no single factor to blame...

Nine months after announcing its intention to buy 10,000 Hyundai Nexo hydrogen-fueled cars, the South Korean government has halved its order. That's according to Business Korea, which said Tuesday that a report published by the government earlier this month indicated that the government plans to...

No single definition exists for the idea of "green car," and very few shoppers set out to go buy a green car. Instead, car buyers look for vehicles that meet their needs—with fuel economy or energy efficiency somewhere in that list of needs, whether higher or lower. Certainly the definition...

Building a fueling network turns out to be more of a challenge than many advocates, regulators, and drivers may have anticipated. The attempt to boost passenger vehicles fueled by cheap, abundant U.S. natural gas is now essentially over, with a mere 942 public natural-gas fueling stations...

As they say, the best compromise is usually the one that leaves all parties equally dissatisfied. When it comes to the Environmental Protection Agency's renewable-fuel mandate, it seems regulators have reached equilibrium. The latest skirmish in the long-running battle over the U.S. renewable-fuel...

You just don't hear the phrase "alternative fuels" as much as you did, say, 10 years ago. With a couple of million plug-in electric cars now on the world's roads, the idea of swapping in one hydrocarbon fuel for another may have passed its time. Admittedly biodiesel continues to make quiet inroads...

Let's say you buy the greenest car you can, one that uses a different kind of fuel, and drive it happily for several years. What happens when the supply of your fuel suddenly ends, and you can no longer fill up your car? That's just what happened to Duncan Chalmers of Seattle, who can no longer...