Tag: aftertreatment

Channel 19

Dealing with DEF quality: Certification program turns 10, amid continued assurance work

Issues that can arise with out-of-spec diesel exhaust fluid include the perhaps most obvious one — improper urea concentration, which at a drastic-enough level can trigger derating of the engine. Other issues can include expensive repairs.

March 19, 2019

Custom Rigs

‘Career gambler’ Dean DeSantis and the aptly-named 2018 Peterbilt 389 with 124-inch ARI sleeper

When it comes to custom rigs, “In the world of everybody building gliders, I’m a guy who kind of cuts across the grain a little bit,” says Dean DeSantis.

October 30, 2018

Business

Concept from Cummins would dramatically cut emissions, company says

Cummins says the system immediately converts almost all NOx emissions to clean gas as it interacts with the selective catalytic reduction (SCR) unit. More here.

September 21, 2018

Equipment

A Closer Look: Diesel exhaust fluid

While it performs a sophisticated task, the basis of the selective catalytic reduction system – DEF itself is a simple blend of urea and water.

February 25, 2013