Def Leppard's new single “Rejoice," released to promote the band's upcoming Las Vegas residency, immediately hits the top 10 ...

Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. Def Leppard has outlived so many of the hard rock and heavy metal ...

The modern world relies on vehicles of all kinds for everything from personal transportation to the facilitation of international trade. These vehicles — which range from passenger cars and SUVs to ...

When diesel-powered trucks sit idle for extended periods, it’s easy to overlook the condition of the diesel exhaust fluid (DEF) in the tank. However, DEF has a limited shelf life, and using expired ...

Diesel, once a bastion of the future and a savior of fuel economy, has found itself in a very different place since the industry-shaking Diesel Gate incident of 2015. It went from what was seen as the ...

When Russell Simmons first met Rick Rubin, he couldn’t believe his eyes. Simmons was at a New York party in 1984 with a hip-hop DJ named Jazzy Jay, who had just released a single with T La Rock called ...

We've been enjoying our long-term 2020 Jeep Wrangler Rubicon equipped with the long-awaited 3.0L EcoDiesel. In day-to-day life it's been everything we'd hoped for, knocking down solid mileage numbers ...

"I want Def Jam to be the destination for the next generation of global Black music," the longtime A&R exec says as he leads the iconic company into its 40th year. By Dan Rys When Tunji Balogun took ...

In 2007, as many truck and engine makers started announcing they would use selective catalytic reduction to meet 2010 federal emissions regulations, a new term entered our trucking dictionary: diesel ...

Under certain conditions, the water in DEF can evaporate, leaving behind white crystal urea deposits. Over time, these crystals can build up, clogging system components and interfering with normal ...

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...