2
new system reDuces tailpipe nox
emissions
The enhanced, legendary Duramax 6.6L Turbo-Diesel is the most powerful
Duramax ever built—generating more horsepower and torque than any
competitor. This proven powerplant gets the job done while being friendlier
to the environment.
The improved Duramax uses the latest emission control technology, reducing
Nitrogen Oxide (NOx) emissions by a whopping 63%, when compared to
the 2010 model. GM engineers determined the best way to accomplish this
remarkable reduction of diesel emissions was to employ a Selective Catalytic
Reduction (SCR) system that uses Diesel Exhaust Fluid (DEF).
table of contents
Reduced Tailpipe Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Selective Catalytic Reduction (SCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Diesel Exhaust Fluid (DEF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electronic Onboard Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Frequently Asked Questions (FAQs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
using diesel exhaust fluid
