diesel fuel

The phrase "clean diesel" has largely fallen into ill repute after it was associated with Volkswagen's diesel emission deceit, but the latest diesel technology can honestly be described with such a phrase. Semi trucks using the latest-generation diesel technology have reached a new...

The fallout from the Volkswagen diesel scandal has cost the fuel plenty of not-so-great headlines, but the idea that diesel will soon die off entirely for passenger vehicles simply isn't true. A report in The Car Connection compiled the proof to show diesel is far from its deathbed. There remain...

It sounds like an intriguing idea: Make diesel fuel from air rather than fossil-fuel petroleum. Better yet, make it from carbon dioxide--the greenhouse gas whose concentration in the atmosphere has risen precipitously since the dawn of the Industrial Age. Diesel fuel, after all, is a hydrocarbon...

Heading into another U.S. presidential election year, getting more biofuels into the U.S. gasoline supply continues to pose both political and logistical hurdles. But researchers, regulators, and entrepeneurs increasingly see promise in synthetic diesel created from a variety of non-fossil fuel...

A decrease in diesel prices and a surge in gasoline demand means the two fuels now cost nearly the same.

Two facts sit in opposition to each other in Washington, D.C., and have for many years. First, raising taxes--in any way, for any purpose, under any circumstances--is virtually impossible. Second, the U.S. Highway Trust Fund is broke, because the Federal gasoline tax hasn't been raised in two...

The nation's only diesel half-ton truck may also be its most fuel-efficient.

With substantial weight savings and all-new drivetrains, the seventh-generation 2015 Volkswagen Golf TDI -- coming to the U.S. next year as a 2.0-litre TDI model, and also a hot hatch Golf GTD -- suggests diesel fans may get the kind of fuel-efficiency figures normally reserved for hybrid cars. But...

With a raft of new diesel vehicles entering the market this year and next, the question arises: Who exactly will buy them? Based on the results of a survey to be released later this morning, Volkswagen of America suggests that some drivers of gasoline cars are likely to be open to the benefits of...

New York City and Long Island today instituted temporary fuel rationing, with drivers only allowed to buy gasoline on alternate days. Starting at 6 am tomorrow, vehicles with odd numbers on their license plates can buy fuel on odd-numbered days; even numbers can buy on even-numbered days. The two...

One of the best ways to save a lot of fuel is to improve the efficiency of the lowest-mileage vehicles on the roads. Those include semis, which often get no more than 2 or 3 miles per gallon of diesel fuel. Their huge diesel engines must put out massive torque to tow one, two, or even three...

Gas prices go up and down, lately more up than down. Today, however, the U.S. government has decided to release a portion of its strategic petroleum reserve, just as crude-oil prices continued a decline that started several weeks ago. Gas prices vary enormously from state to state, due to...

You probably drive a gasoline car. And surely you've heard of cars with diesel engines. But how about a car with an engine that burns both fuels, at the same time? That's what Chrysler is working on, it turns out, funded in part with research dollars from the U.S. Department of Energy. Author Mike...

We have to admit, we're fond of infographics. This one has three simple parts. It looks at gas prices--which recently rose to an average of $4 a gallon before ebbing slightly--showing national average prices for both three grades of gasoline and for diesel fuel. Then it suggests some driving tips...

Unless you're Argonne Laboratories, putting gasoline into a diesel fueled car is a bad problem. Maybe it was brain fade. Perhaps you rented or borrowed an unfamiliar car. Or you simply didn't realize that nice Volkswagen or Mercedes-Benz was a new, clean-diesel car. (It also happens to particularly...