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Fuel efficiency

In the face of ever-tightening emissions regulations, the world's car manufacturers are finding innovative ways to cut fuel consumption. In its quest for greater fuel efficiency, Audi has developed a four-cylinder TFSI engine that makes use of a new combustion method, resulting in what Audi claims is the most efficient two-liter gasoline engine in its class.

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Honda displayed a new and very practical small-capacity adventure bike named the Bulldog last week at the 42nd Tokyo Motorcycle Show in Japan, using its recently adopted modular engineering concept to adapt the CB500 into its most practical form yet. With a seat height of just 730 mm, lots of crash protection, 93 miles per gallon and Honda reliability, it makes a lot of sense as an overland transport option for the 75 percent of the world's population below 172 cm in height. It's a wonder someone didn't think of this before. Read More
Professor Gordon Murray's T.25 city car was designed to be compact, as well as cheap to produce, purchase and run. Now, it has been revealed that the T.25 will undergo a "ground-up, total re-think." Project M will see a new small and efficient concept car developed in partnership with Shell. Read More
Back in 2009, the US Department of Energy issued its SuperTruck Challenge. The program provided funding for truck manufacturers to design and build a prototype vehicle that was at least 50 percent more freight-efficient than a baseline 2009 truck. Daimler Trucks North America recently unveiled its response – the Freightliner SuperTruck. It goes beyond the 50 percent figure, with a claimed efficiency increase of 115 percent. Read More
Boeing is at it again, continuing its on-going ecoDemonstrator test program by ramping up a series of flight tests with a modified 757 airliner. The lengthy tests will assess new methods to advance efficiency, cut noise and lower carbon emissions. Read More
Back in 2012, Gizmag looked at LiquidPiston’s X2 rotary engine. The compact, low-vibration, high-efficiency 70 bhp and 40 bhp compression ignition engine was something of a sensation. Now the company is back with the 70 cc X Mini engine, which LiquidPiston’s President and Co-Founder, Dr Alexander Shkolnik unveiled on Wednesday at the SAE International/JSAE 2014 Small Engine Technology Conference in Pisa, Italy. Read More
A few days after Peugeot weighed in with its latest eco-friendly hybrid concept, French countrymate Renault followed suit. Its all-new EOLAB Concept slashes fuel consumption in half when compared to the already efficient Peugeot 208 Hybrid 2L, requiring just 1 liter for 100 km of driving (235 mpg) while puffing out just 22 g/km of CO2 (NEDC cycle). Read More
GE is looking to a new generation of carbon-fiber composites to make the fan blades for its GE9X jet engine. That engine is being developed for the Boeing 777X passenger airplanes that are set to enter service in 2020 and the new blades promise to provide larger, lighter engines with greater fuel efficiency. Read More
The MPG Marathon, now in its fourth year, aims to demonstrate how fuel-efficient cars, route planning technology and eco-friendly driving skills can help to manage the rising cost of fuel. This year, electric vehicles, alongside range extenders and plug-in hybrids, will take part for the first time in its history. Read More
In 1936, Mercedes-Benz became the first company in the world to launch a diesel passenger car – the 260D. Over the years, diesel automobiles became renowned for their efficiency and fuel economy. Now, the manufacturer is building on that success with the introduction of high-tech steel pistons. Read More
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