Q&A About Diesel Exhaust Fluid (DEF)
If you’ve heard about the new 2011 Tier 4A engine emissions requirements, you’ve probably heard mention of Diesel Exhaust Fluid aka DEF. But, you might not know a whole lot about it. Below, we’ll shed some light on DEF. What is DEF and when will I need it? DEF – a stable, non-toxic solution made…