China’s Turbocharged Future Will Reduce Vehicle Emissions
The main way to reduce vehicle emissions is to reduce fuel consumption. Typically, reducing fuel consumption requires reducing engine size and power, which isn't...
MG Launching Small Turboboosted Engines for Fuel Efficiency and Power
There are a number of ways to increase fuel efficiency, turboboosting, as used in the new Ford EcoBoost engine lineup, adds power, but also...
Shell Eco-Marathon Americas Yields Super Fuel Efficient [3,587mpg] Reliant Robin
When we think fuel efficient, we might think hybrid or electric and this maxes out our brains at a little over 100mpge, so how...
![Liquified Natural Gas [LNG] being Transported in Finland](https://i0.wp.com/www.greenoptimistic.com/wp-content/uploads/2013/04/1024px-Liquid_natural_gas_land_transportation_Finland.jpg?resize=180%2C135&ssl=1 "Natural Gas Bus and Truck Fleet to Expand in the EU")
Natural Gas Bus and Truck Fleet to Expand in the EU
Research indicates that by 2018, natural gas trucks and buses will account for 3.4% and 12.7%, respectively, of the entire fleet in the European...
BMW i3 First EfficientDynamics Engine Tested in a 1 Series [UPDATED]
Hybrid vehicles we're looking forward to from BMW, the i8 and ActiveTourer, and they both have one thing in common, a three-cylinder engine.
Engines are...
Peterbilt’s SuperTruck Program Makes Trucks More Fuel Efficient
While some two million registered tractor-trailers on the road today average just 6mpg, Peterbilt's SuperTruck program is developing more efficient trucks for the future.
Cargo...
US Army’s 7mpg HUMVEE Replacement, More Fuel Efficient
Military vehicles are in a class all their own, and the same is true for the US Army's HUMVEE replacement, which is rated at...
![Ceramic Matrix Composite [CMC] Material, Takes the Heat in a Jet Engine Core](https://i0.wp.com/www.greenoptimistic.com/wp-content/uploads/2013/03/CMCOberflaeche.jpg?resize=180%2C135&ssl=1 "General Electric Turns to Ceramics For More Efficient Jet Engine")
General Electric Turns to Ceramics For More Efficient Jet Engine
Jet engines run at the very edge of thermal meltdown, but General Electric is turning to ceramics to turn up the heat and make...
A More Efficient Mazda Rotary Engine Could be Back in Five Years
The Wankel Rotary Engine, of unique design and origins, is the only mass-produced engine to have been conceived in the 20th century, while piston-crankshaft...
Volkswagen XL1, The 270 MPG Diesel Hybrid to be Exhibited in Geneva
Volkswagen XL1, a diesel hybrid that has a fuel efficiency to be envied by GM or Toyota: 270 miles per gallon, while doing 60...
