While cars have become increasingly more efficient in recent years thanks to advances in fuel-saving technology and the increasing adoption of hybrid powertrains that promise the most electric charge ...

The average miles per gallon of a semi-truck is bad enough when barreling down the highway — somewhere in the range of 6-8 MPG — but things don't look much better when the 18-wheeler's at a standstill ...

Aircraft weight: Higher takeoff weights, whether from full passenger loads, cargo, or fuel for long stages, increase fuel ...