All about Diesel Exhaust Fluid (DEF)
Diesel Exhaust Fluid, or DEF, is an important part of owning a modern Chevrolet diesel vehicle. Whether you have a 3.0-liter Duramax or the big 6.6-liter Duramax, you will need to become acquainted with DEF and how it impacts your truck or SUV. What Is DEF Anyway? What is this mystery substance? Simply put, it…