gasoline direct injection

  • Mazda SKYACTIV-G 1.3 direct-injection gasoline engine

    The 2011 Mazda2 is already one of the most fun small cars on the market, sharing its platform with Ford's Fiesta. It's pretty economical too, but with Mazda's next generation of gasoline engine, it'll become very efficient indeed. The 1.3-liter Skyactiv-G unit soon to be found in the Mazda2 gets 30 kilometers per liter on Japan's 10-15 mode test cycle. That's just over 70 miles per gallon, with no diesel nor hybrid system in sight. EPA figures are usually 10-20 percent below that of Japanese tests, but even considering that, a worst-case 56 mpg doesn't seem too bad to us. Behind the...

  • 2011 Dodge Grand Caravan
    New Chrysler Engine To Burn Gas And Diesel--At The Same Time

    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...

  • 2012 Mercedes-Benz SLK
    U.S. Gas Is Too Dirty For Our Best Engines, Mercedes-Benz Says

    We rarely think about what's in our gasoline when we fill the tank, but carmakers have to. Mercedes-Benz has just launched a new direct-injected 3.5-liter V-6 engine in its 2012 SLK model, with an innovative "lean burn" mode that will also be used on a smaller four-cylinder engine. The "Stratified"...

  • Toyota logo
    Toyota Hops On the Direct Injection And Turbocharging Bandwagon

    Toyota is the latest automaker to announce it’s headed down the downsized engine path as it strives for improved fuel economy, following the likes of Ford, Mercedes-Benz and Hyundai, all of which have announced similar plans in the recent past. Toyota has long been the champion of hybrid...

  • Mazda SKYACTIV technologies
    Next-Gen Mazda2 Will Return 70 MPG, Without An Electric Motor

    The U.S. is just getting its first taste of the funky Mazda2, a car that has helped rewrite the rulebook on affordable hatchbacks by showing that cheap doesn’t have to mean drab and boring to drive. However, the next-generation of Mazda’s global small car is currently in the works and...

  • Third-generation Subaru four-cylinder boxer engine
    Subaru Unveils More Efficient Four-Cylinder Boxer Engine

    Subaru is sticking to its almost trademark horizontally opposed or ‘boxer’ engine for its future lineup of cars, improving on the design, making it more refined and fuel efficient with each generation. The third and latest generation of the engine--the first major redesign in 21...

  • fuel injectors, photo by Transonic

    The principles of the gasoline engine have chugged along for a century now without much change. The last big evolutions were variable valve timing and the switch to fuel injection from carburetors. Now a flurry of innovations to boost fuel efficiency is in the pipeline. One of them comes from a startup, Transonic Combustion, which claims its technology delivers fuel into the cylinder in a supercritical state--essentially, a fourth state of matter (after solid, liquid, and gas) in which the liquid is heating above its boiling point at very high pressure. When gasoline is injected into the...

  • 2011 Chevrolet Cruze Eco
    Special Brands for Small Turbo Engines: GM To Follow Ford?

    Used to be that turbos were used in performance cars, from the Saab Turbos of the late Seventies to BMW's current range of twin-turbo sixes. These days, the little air pumps more often make smaller engines perform like bigger ones to give fuel economy. In brief, a turbocharger uses exhaust gases to...

  • 2010 Ford F-150
    Smaller-More-Efficient Engines II: Ford EcoBoost Effort Expands

    We said it on Friday: Smaller, more efficient engines are going to be the main way we increase gas mileage in the next few years (in that case, a four-cylinder 2010 Buick LaCrosse). This morning, Ford has underlined that theme once more by announcing three new applications of their EcoBoost engines...

  • 2010 Buick LaCrosse
    Smaller-More-Efficient-Engine Example: 2010 Buick LaCrosse

    Sure, hybrids and electric cars are great, but they sell in small numbers. The way most cars will meet newer, more aggressive fuel-economy rules is by making engines smaller and more efficient. Case in point: the 2010 Buick LaCrosse, a midsize sedan now offered with a 2.4-liter direct-injected...

  • 2011 Hyundai Sonata First Drive
    Fuel Efficient Fours Gain Ground on V-6s, V-8s In New Cars

    At December's Los Angeles Auto Show, Hyundai made a big splash by saying it would no longer offer V-6 engines in its Sonata midsize car or its Tucson compact crossover. Instead, it replaced them with higher-performance, more fuel-efficient four-cylinder motors. But Hyundai's just one of many makers...

  • 2011 Ford Focus
    2010 Detroit Auto Show: 2012 Ford Focus

    Coming off the successful launch of its 2011 Ford Fiesta subcompact at last month's Los Angeles Auto Show, Ford is following up with its even more important 2012 Ford Focus compact. This will be the first complete redesign of the North American Focus in more than a decade, and at last U.S. buyers...

  • 2010 Hyundai Tucson

    One of the standouts among the global carmakers at the 2009 Los Angeles Auto Show was Hyundai. The Korean company has seen its market share rise from 3 to 4 percent during a dismal downturn, even without any new volume models to spur excitement. Now, with its Los Angeles launch of the 2010 Tucson compact crossover and the 2011 Sonata midsize sedan, Hyundai has unveiled two new volume vehicles that it hopes will keep it climbing. The big surprise? Hyundai won't offer a V-6 engine in either model. Omission by design And that's by design. As John Krafcik, CEO of Hyundai America, told us, "We...

  • 2011 Chevrolet Cruze
    2011 Chevrolet Cruze Compact Car Launch Delayed Til Next Fall

    As U.S. carmakers get serious about building world-class compact cars, one of the most eagerly awaited entries is the 2011 Chevrolet Cruze, which will face off against a totally new 2012 Ford Focus as well as revised models of the Toyota Corolla, Honda Civic, and Nissan Sentra. Now reports say that...

  • gas pump
    OMG: Gas Mileage Is More Important Than Cupholders, Say Buyers

    Car sales may have plunged to their lowest per-capita level in decades, but for the green-minded among us, there's some good news: Fuel economy is now more important to car buyers than are cupholders. That's one piece of data gleaned from a lengthy survey of car buyers by the big accounting firm...

  • 2010 Ford Mustang Shelby GT500 Convertible
    Will the 2011 Ford Mustang Get An EcoBoost Engine Too?

    We always enjoy talking cars with the opinionated Alex Nunez from Autoblog, most recently last week when we both appeared on FoxNews.com's Fox Car Report with dapper host Gary Gastelu. This week's guest was Derrick Kuzak, who heads up global product development for Ford. Meaning he's the guy...

  • Mahle three-cylinder, 1.2-liter engine develops 193 horsepower
    Big Mileage Gains From Really, Really Small Engines

    We keep saying that one of the ways all cars will get greener and more efficient is for their engines to get smaller and work harder. One of the first production examples of this is Ford's EcoBoost V6 engine, which delivers the power of a V8 with better gas mileage. Now a couple of experimental new...

  • gas pump
    Surprise: Heavier, More Powerful Cars Get Worse Gas Mileage

    Here at GreenCarReports.com, we read a lot. And increasingly, our friends send us stuff they think we'd be interested in. Which is how we came across an abstract of a study done by one Christopher R. Knittel at the University of California-Davis. Knittel looked at the factors affecting carmakers'...

  • 2010 Lincoln MKS with EcoBoost

    On Tuesday, we covered the news that Ford, Nissan, and Tesla had been granted a total of $8 billion in low-interest loans by the US Department of Energy to retool for advanced automotive technologies. With a few days under our belt, we've considered the story and have a few questions for you to watch and consider. (1) What's the balance between better gasoline engines and hybrid or electric cars? Hybrids and electric cars get more than their share of press, considering that even three or four years hence, global production will just have crossed into six figures. But vastly more efficient...

  • Ford Motor Company's EcoBoost V-6 engine, 3.5-liters
    Advanced Auto-Tech Loans Go To Tesla, Ford, and Nissan

    US Energy Secretary Steven Chu today announced the first three loans to be granted under the government's Advanced Technology Vehicles Manufacturing program. The lucky winners, totaling $8 billion worth of low-interest loans from the US Department of Energy: Ford, Nissan, and Tesla. FORD Amount...

  • 2010 Ford Taurus SHO
    Ford Fits EcoBoost Engine to 2010 Taurus SHO (aka Hot Rod)

    Ford's new V6 EcoBoost engine lowers fuel economy while raising power; it'll appear first in the 2010 Taurus SHO