Def Leppard frontman Joe Elliot talks about spending three years perfecting ‘Hysteria’, the last-minute gamble that turned ...

GM Duramax diesel DEF tank failures are increasingly popping up in social media and owners are furious about the problems ...

On the heels of clarifying farmers’ right to repair their own equipment, EPA is escalating pressure on diesel engine manufacturers over ongoing Diesel Exhaust Fluid (DEF) system failures the ...

With nearly 40 years in the music business, British rockers Def Leppard know a thing or two about what makes a band stay united. "We can turn it on and off. We’ve always said, ‘Leave your ego in the ...

Def Leppard had always aimed to be a big deal. Their iconic 1987 album, Hysteria, had been a giant of an LP, breaking sales (and length) records, and propelling them to where they’d always wanted to ...

Retail DEF prices have managed to stay steady since the start of the Iran war; will it continue? The post DEF pump prices, so ...

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 ...

DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions. Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations ...