High-performance diesel trucks and cars will take center stage March 12 during the 4th Annual Desert Diesel Nationals at the Speedworld Dragstrip. 

Record diesel fuel prices are causing shippers, trucking companies and ultimately consumers, financial anguish.

When the 1985 yellow fire truck donated by Rural Metro pulled into the garage bay at EVIT, about a dozen students climbed on board eager to start their hands-on study of the big vehicle in Diesel Technology class.

After Chandler resident Mark McCoin lost his job in November, he created what he believes is a revolutionary engine.

With diesel fuel approaching $4 a gallon in the East Valley, some motorists with diesel engines are converting their vehicles to run on vegetable oil. Charlie Anderson, president of Golden Fuel Systems, said interest in his company's waste vegetable oil conversion kits has soared.

All Nicolaus Otto wanted to do was make enough money to marry his wife, settle down and begin a career. He was 26 and a seemingly happy young man who was content to sell sugar, rice, coffee or tea while traveling through the countryside of western Germany in the 1850s.

It’s been a long time since passengers waited at Globe’s railroad depot for the whistle of an approaching train. The quaint mining town’s 1916 depot has been used for little more than a laundromat since it shuttered its doors to rail traffic in the 1950s.

Celebrate the advent of the “Iron Horse” at the Arizona Railway Museum.

The last steam locomotive built for Union Pacific will chug through the Valley this weekend to help Arizona celebrate its centennial with a piece of Western history.

Sustainability, medical, mechanical engineering and military problems don’t have to be solved solely by private corporations or government agencies.

Salt River Project may be proposing the use of the cleanest diesel fuel available, but that’s not enough to satisfy environmental activists and neighborhood residents who fought to ban the fuel at the San Tan power plant in Gilbert.

With low-sulfur fuel, less noise and little or no odor, the diesel has found new life in North America.

Gilbert’s entire fleet of diesel vehicles has switched to a soybean-based biodiesel that is expected to support the town’s clean-air programs, maintain engines for longer life spans and also bring future savings.

DETROIT - While they may or may not end up in America's driveways, there were plenty of vehicles turning heads at this week's North American International Auto Show, including Hyundai's new luxury sedan, a Cadillac coupe, Chrysler's green concept cars and a hybrid Toyota pickup.

 A new study brought out by JD Power and Associates predicts sales of hybrids electric vehicles and high mileage diesels are expected to triple by 2015. With gas prices nearing the $4 a gallon range, many new car purchasers are leaving behind the gas guzzlers of the ‘90s in favor of the greener, meaner, high mileage hybrid vehicles. It just makes sense.

Scottsdale will begin using biofuels in many of its municipal vehicles in an effort to make its fleet operation more environment-friendly and energy-efficient.

Here’s a neat package for your automobile that delivers peaceof-mind security plus the convenience of a remote starter and keyless entry.

 BMW ’s 3 Series adds a new diesel dimension.

WESTON, Conn. - As car owners across the country grapple with pumped-up gas prices, some are turning to their favorite restaurants for a solution: Recycled vegetable oil.

DETROIT - Hybrid vehicles are on track to achieve record U.S. sales this year despite signs consumer interest in hybrids is waning, an auto information company said Thursday.