Fuel use represents up to 39% of a fleet’s cost-per-mile, according to the American Transportation Research Institute. A single commercial truck, running 100,000 miles a year at 7 mpg, can consume up ...

This trailer owned by Illinois-based Nussbaum Transportation has both an aerodynamic “boat tail” from Stemco TrailerTails and extra-long trailer side fairings it developed with Wabash. Photo: Nussbaum ...

The 350Z wouldn't normally come to mind when talking about fuel economy, given the stock car's powerful 306-bhp 3.5-liter V-6 and 6-speed manual gearbox. And yet, the car's highway rating of 25 mpg ...

All over the mainstream market today, manual transmissions are either an option or not available at all, and while there is something to be said for modern auto boxes, many of us still want to feel ...