Want Help Using and Maintaining DEF?

Ever since the Clean Air Act went into effect in 1970, the United States Environmental Protection Agency (EPA) has taken the necessary steps to regulate exhaust emissions from various types of vehicles to reduce harmful air pollution. This guide covers what you need to know about using and protecting DEF.

Download the DEF Guide
  • Understand the benefits of DEF
  • Learn about SCR technology
  • Get strategies for handling DEF
  • Learn about EPA regulations
  • Combat challenges of DEF and cold temperature

Learn how to make the most of DEF in your everyday life

Download the DEF Guide