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Fuel efficiency

The Edison2 team, with Oliver Kuttner beside the Very Light Car

The Edison2 team took away US$5 million for winning the Mainstream class of the Automotive X-PRIZE last week with its 100+ MPG car of the future – Very Light Car #98. Gizmag caught up with team leader Oliver Kuttner after the ceremony to find out what's next for Edison2.  Read More

The fuel economy record-setting Avion automobile

Back in 1984, Craig Henderson and Bill Green built a one-of-a-kind super fuel-efficient car called the Avion. In 1986, it set the Guinness world record for fuel economy by averaging 103.7USmpg (2.27L/100km) while driving from the Mexican to Canadian borders. Unlike most autos from that era, the Avion is still on the road... and breaking its own records. In October 2008, Henderson and Green achieved 113.1mpg (2.08 L/100km) on a 263-mile (423 km) trip in the US Pacific Northwest. Then, this August 29th, they departed from Blaine, Washington (adjacent to the Canadian border) and drove 1,478 miles (2,379 km) to the Mexican border. They used just 12.4 US gallons (46.94 L) of diesel and set a new record of 119.1mpg (1.97L/100km).  Read More

An exploded view of the Chevrolet Cruze's air shutter system

The Honda Civic hybrid gets approximately 45 mpg on the highway, while the similarly-sized 2011 Chevrolet Cruze Eco gets 40 mpg. That's pretty decent on the Chevy’s part, considering it isn’t even a hybrid. Of course, because it isn’t a hybrid, that means it doesn’t sport a hybrid’s price tag - the Cruze Eco will start at $US18,895, as opposed to the Honda’s $23,800. So, how is it possible for a combustion-engined car to almost match a hybrid’s fuel efficiency? Well, lowering the weight and the ride height help a bit, but according to Chevrolet, the real reason lies in the car’s unique front air shutter system.  Read More

Aptera competes in the Range Test event in the Alternative Class at the Automotive X PRIZE

It's very much down to the pointy-end for the remaining twelve teams in Progressive Automotive X PRIZE with the finals stage underway at the Michigan International Speedway. As we write this article teams are taking part in the critical range test where they must achieve 100 miles without charging or refueling (200 miles for the mainstream class) – perhaps the most challenging hurdle remaining for those still in the running for a share of the $10 million prize.  Read More

Minix wing tip device promises 6% gain in fuel efficiency for airliners

Fuel consumption and greenhouse gas emissions are huge priorities in the aviation industry – passenger airliners chew through amazing quantities of fuel. Take the Boeing 747, which guzzles somewhere around a gallon of jet fuel per second – it's clear that a percentile improvement in fuel consumption can make a huge difference to costs at the end of a long-haul flight. That's why the Minix wing tip deserves close scrutiny. It replaces the tilted winglets at the tip of an aircraft wing, can be retrofitted to any airplane, and smooths out the wing-tip vortex, reducing the aircraft's wing drag. Minix claims the design is five times more effective than a regular winglet and can save as much as 6% on an aircraft's energy costs. For a commercial Boeing 747, that equates to a saving of around 600,000 gallons of fuel per year, per aircraft. Food for thought.  Read More

A five year Shell Eco Marathon fuel efficiency record has been smashed by a team of French...

A five year Shell Eco Marathon fuel efficiency record has been smashed by a team of French students. Team Polyjoule broke the record on the first day of the event by recording an astounding result of 4,414 kilometers on the equivalent of one liter of fuel (that's 10,382 mpg). The team then went on to break its own record by a further 482 kilometers. But the students still expect even more from their hydrogen fueled vehicle and are already looking toward next year's Marathon.  Read More

The Mercedes-Benz C 200 CGI Blue EFFICIENCY has reduced its fuel consumption but boosted p...

Mercedes-Benz is now equipping its popular C-Class 180 CGI, 200 CGI and 220 CDI models with BlueEFFICIENCY. Featuring six-speed manual transmissions and ECO start/stop functionality, the company says this technology will reduce the vehicles’ fuel consumption and CO2 emissions by 10 percent . The newly-configured C 220 CDI will now consume only 4.4L/100km and CO2 emissions drop to 117g/km. Also added to the line-up for the first time is the C 250 CDI 4MATIC Blue EFFICIENCY four-cylinder 4WD diesel.  Read More

Mazda i-stop engine-idling-stop system wins another major award

Mazda's innovative i-stop engine-idling-stop system has won yet another award, this time at the lchimura Industrial Awards. While idling stop systems are now becoming commonplace due to the approximate 10% fuel savings they offer, conventional engine stop systems rely on a motor to restart the engine, whereas Mazda's i-stop restarts the engine through combustion: fuel is directly injected into a cylinder while the engine is stopped and ignited to generate downward piston force. Mazda's use of principles unique to the direct injection spark ignition (DISI) engine restarts the engine in just 0.35 seconds, about half the time of most other competing systems, while minimizing noise and vibration and drain on the batteries.  Read More

The all-new 2011 Hyundai Sonata Hybrid which can operate on an electric motor, gasoline in...

Hyundai has announced that its all-new 2011 Sonata will be the first vehicle to offer gasoline direct-injection (GDI), twin-scroll turbochargers and full-hybrid powertrains. Unveiled at the New York auto show, the Sonata Hybrid is Hyundai’s first hybrid in the US market. Its Hybrid Blue Drive can operate on an electric motor, gasoline internal combustion engine or a combination of the two depending on driving conditions and driver demands. It's also the only hybrid using lithium polymer battery technology.  Read More

A new report has made suggestion as to how fuel consumption of medium- and heavy-duty vehi...

While there are fuel consumption standards for passenger cars, there is no such regulation of medium- and heavy-duty vehicles in the U.S. With such vehicles accounting for about 26 percent of the transportation fuel used in the U.S. regulators are looking to establish fuel economy standards for these vehicles in the next few years. Now a new U.S. report has been released recommending the best ways to measure and regulate fuel economy for these vehicles, and assess technologies that could improve it. Amongst its findings, the report says that some vehicles could cut their fuel use by about 50 percent through the use of a combination of technologies.  Read More

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