miles per gallon

It happens so quickly: They learn to crawl, and then walk, and before you know it, you're helping them do their first oil change in their first new car. A little more than six months ago, I contributed an article on my car shopping experiences with my daughter Priscilla. Those ended with her...

It's downright confusing trying to calculate how much it costs to run green cars, whether it's a 50-mpg Toyota Prius or a highly efficient electric car like the 124-MPGe BMW i3. One of the problems is how to use different efficiency ratings for various powertrains--gasoline, hybrid, electric--to...

First Hyundai and Kia cut fuel-economy ratings on a dozen models, then Ford on the C-Max. Then, Ford cut ratings on the C-Max again, along with those of five more models. Are there more to come? Industry sources have quietly been discussing in recent weeks that more adjustments to EPA gas-mileage...

You read a lot about hybrids and electric cars these days, but fuel-efficient diesel engines will be coming in certain classes of cars this year and in the future. The most recent crop of diesel launches has been in the crossover utility vehicle class, of which we've now driven three different...

We're fond of the Chevrolet Spark minicar; it's by far the best-executed of the several smaller-than-subcompact cars sold today. But our fondness had been limited to the five-speed manual version; the four-speed automatic offered in 2013 was, in a word, awful. Now we've driven a 2014 Chevrolet...

Auto writers tend to like Mazdas; they generally perform and handle well, and are far more fun to drive than the anodyne Fords, Hondas, and Toyotas that outsell them in the compact and mid-size categories. The newest crop of Mazda cars and crossovers, built around the company's highly...

How do you measure your gas mileage? Do you take mileage readings after each tank, refill to the brim, calculate how much you've used...and repeat at each fill-up? Or do you press the trip computer button a few times to bring up your tank average? If you're doing the latter, there's always the risk...

For some companies in the auto industry, building cars to hit a target of 54.5 mpg by 2025 may seem like a near-impossible task. But to others, the EPA's Corporate Average Fuel Economy targets agreed in 2011 aren't simply achievable by that date, but could be reached today--and with today's...

A Mitsubishi Mirage sedan is expected to appear at the 2014 Montreal Auto Show.

According to the University of Michigan Transportation Research Institute, sales-weighted new-car average fuel economy has steadily improved since October 2007.

While hybrids are one way to get good gas mileage in a variety of cars, another way is to wring every last drop of efficiency out of new and highly-efficient gasoline engines and transmissions. That's the path Mazda's taken, and it seems to be working. Two overachievers Almost two years ago, we...

Almost four years ago, the Ford Mustang was the first car to offer both 300 horsepower and 30 miles per gallon in its an EPA highway rating. How much better will the new 2015 Ford Mustang do? The 2015 Mustang will offer a four-cylinder engine, the model's first since 1993--though the new 2.3-liter...

Buffalo, New York has the cheapest used diesel cars in the United States, according to a new study.

Your mileage may vary from the published estimates, as all drivers know. But it turns out it may vary more in Canada, whose fuel-efficiency ratings are higher than those from the U.S. Environmental Protection Agency for an identical car. That's because the Canadian authorities use a two-cycle...

The new 2015 Honda Fit will have a combined EPA gas mileage rating of 36 mpg, according to Honda officials. That's the second-highest rating for any five-door subcompact hatchback, and notably improves on the current 2013 Fit's highest rating of 31 mpg. MORE: 2015 Honda Fit - preview In a company...

Do you miss your old three-cylinder Geo Metro? If so, Mitsubishi has a new car just for you. The 2014 Mitsubishi Mirage five-door hatchback minicar has the highest fuel-economy rating of any non-hybrid on the market. The EPA rates it at 40 mpg combined (37 mpg city, 44 mpg highway) when fitted with...

Gas mileage has gotten far more important in new-car choices over the last 10 years, and that's not likely to change. But not everyone really understands automobile efficiency--or how to maximize their mileage--and which tactics will really save them money. Here's our cheat sheet. (1) Your driving...

The EPA will release the results of its most recent round of gas mileage test audits, hoping to make the testing process more transparent.

The 2014 Chevrolet Malibu gets a new base engine, and with it come new, higher fuel-efficiency ratings from the EPA. But does the improved gas mileage mean the Malibu Eco model no longer has a reason to exist? For the new model year, Chevy made a large number of changes to the year-old vehicle...

The all-new 2014 Mazda 3 was revealed at the end of June, but only as a five-door hatchback--the model that will be the mainstay in Japan and Europe. Now we've had our first look at the 2014 Mazda3 four-door sedan in person; it was displayed at last week's Frankfurt Auto Show. The pictures show the...