Eight months and 16,000 miles of diverse driving have proven that as we’ve averaged 18.8 mpg in our diesel Silverado ZR2.

DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions.

It has been a decade since the VW Dieselgate scandal broke out, but the saga continues – with other automakers.

Small speed reductions and mindful driving can improve diesel mpg by 3–5%, saving fleets thousands in fuel costs. Smart route ...