The light-duty 2012 Chevrolet Silverado 1500 receives a few modest updates for the new model year, including appearance tweaks and new trim packages. Exterior design changes include a split front ...

Saving the earth one plastic tote and cardboard box at a time. Diesel exhaust fluid (DEF) is nothing new. GM’s ...

Selective catalytic reduction uses ammonia to break down NOx emissions into harmless nitrogen and water. It does this by first routing exhaust gases through an oxidation catalyst, which removes ...