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9Volvo expands engine lineup with two fuel-efficient, 1.6-liter 4-cylinder GTDI mills

Come this fall, Volvo's range of engines will be bolstered with the addition of two new mills that feature a wide variety of the currently available mileage-enhancing tricks and power-boosting techniques. The engines, dubbed the T3 and T4, border on tiny with each mill displacing just 1.6 liters. Nonetheless, they boast power numbers that range from 150 horsepower (in T3 trim) to 180 hp for the T4 unit. Both the T3 and T4 make due with just four-cylinders, but the addition of a turbocharger and

57AutoblogGreen Q&A with Transonic Combustion: Can supercritical fluids give a 30% mpg boost?

Given that the traditional four-stroke Otto-cycle engine piston engine only has a thermal efficiency of 25-30 percent, there is clearly still plenty of room for improvement. While most of the green automobile attention in recent years has been focused on electrification, liquid fuels still have about 100 times the energy density of today's best lithium-ion batteries, a difference that probably won't change significantly any time in the near future.

13Nissan introduces 1.2L supercharged-DI three-cylinder for Micra (March)

With the introduction of the new Nissan Micra/March minicar comes an all-new engine for the brand. The HR12DE is the first of many similar engines from various automakers expected to debut in the next several years. This is a 1.2-liter inline-three with direct injection and a supercharger.

92011 Lincoln MKX gets best in class mileage, 19/26 mpg with V6, Ecoboost still to come

2011 Lincoln MKX – Click above for high-res image gallery

10Delphi to discuss next-generation direct injection at SIA Congress

At the SIA (French Automotive Engineers Society) Congress in Rouen, France this week, Delphi will be presenting information on its latest-generation direct fuel injection and control systems for diesel engines. Delphi produces both electromagnetic servo injectors and the more advanced piezo-electric injectors. For the latest editions of both systems, Delphi has bumped the maximum operating pressures from the 2,000 BAR level that has been used in the last few years up to 2,400 BAR (34,800 psi). T

19Officially Official: The new direct injected, multi-spark V6 and V8 engines from Mercedes-Benz

Mercedes-Benz 4.7-liter twin-turbo V8 – Click above for high-res image gallery

19Next-gen Mini Cooper to match diesel efficiency with turbo DI inline-three

It's no secret that BMW, like many other automakers, is working on smaller three-cylinder engines for its future products in order to reduce fuel consumption and CO2 emissions. Some of those engines will go into the next generation of Mini products. Mini's goal is to provide a significant improvement in fuel economy without sacrificing performance.

23Report: Next-gen Mini Cooper to match diesel efficiency with turbo DI inline-three

It's no secret that BMW, like many other automakers, is working on smaller three cylinder engines for its future products to reduce fuel consumption and CO2 emissions. Some of those engines will go into the next generation of Mini products and the goal is to provide a significant improvement in fuel economy without sacrificing performance.

44Videos: Hyundai shows off direct-injected V6, four-cylinder, eight-speed automatic

Hyundai 1.6-liter GDI engine – Click above to watch the videos after the break

12Report: GM struggling to market fuel efficient turbo technology

In the automotive realm, marketing can sometimes prove just as important as the actual product. Take, for instance, Ford's well-regarded EcoBoost technology, which couples turbocharging with direct injection to produce more horsepower and reduce fuel consumption. Would it surprise you to hear that General Motors has had similar technology on the market for over three years?

77Report: GM struggling to market turbo technology

In the automotive realm, marketing can sometimes prove just as important as the actual product. Take, for instance, Ford's well regarded EcoBoost technology, which couples turbocharging with direct injection to produce more horsepower and reduce fuel consumption. Would it surprise you to hear that General Motors has had similar technology on the market for over three years?

13SAE 2010: Affordable technology key to meeting the 2016 CAFE rules

Affordability as the watchword Tuesday as automotive engineers at the SAE World Congress discussed how to meet the new 2016 corporate average fuel economy standards. Automakers will have to get their fleets to an average of 34.1 miles per gallon (35.5 equivalent with other factors for the EPA CO2 limits). Most automakers are already well on their way to this level with their next-generation designs. However, to do it they will have to make improvements to virtually every model in the entire flee

632011 Nissan Juke details, specs spilled ahead of New York intro *Updated w/video

2011 Nissan Juke – Click above for high-res image gallery

452011 Buick LaCrosse drops 3.0L V6, adds four-cylinder

2010 Buick LaCrosse – Click above for high-res image gallery

1Chicago 2010: GM uses clear plastic to illustrate direct injection

Cutaway engine displays at Chicago Auto Show – Click above for high-res image gallery

14Lotus: Omnivore engine is 10% more efficient with more to come

Last March at the Geneva Motor Show, Lotus announced its new Omnivore research engine. The Omnivore is a two-stroke direct-injected engine designed to take advantage of the latest in electronic engine management and run on just about any liquid fuel (hence the name). In the time since the initial announcement, the boffins at Lotus Engineering have been exercising their creation on the dyno stand to evaluate its performance.

11Lotus' Omnivore engine is already 10% more efficient, with more to come

Last March at the Geneva Motor Show, Lotus announced its new Omnivore research engine. The Omnivore is a two-stroke direct injected engine designed to take advantage of the latest in electronic engine management to allow it to run on just about any liquid fuel (hence the name). In the time since the initial announcement, the boffins at Lotus Engineering have been exercising their creation on the dyno stand to evaluate the performance.

38New Hyundai 2.4-liter GDI four-cylinder makes 200 hp in 2011 Sonata

Hyundai 2.4L Theta-II GDI - Click above for high res image gallery

9Hyundai's new 2.4L GDI four cylinder hits up to 200hp in Sonata, 10% more MPG

Hyundai 2.4L Theta-II GDI - click above for high-res image gallery

6Hyundai launches first direct injected engine, coming to new Sonata

testing Hyundai's Theta II DGI engine - click above for high-res image gallery

37Hyundai launches first direct-inject four-cylinder engine, replaces V6 in new Sonata

testing Hyundai's Theta II DGI engine - Click above for high-res image gallery

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