What does aftertreatment mean?
An aftertreatment system is a method or device for reducing harmful exhaust emissions from internal-combustion engines. In other words, it is a device that cleans exhaust gases to ensure the engines meet emission regulations.
How do you maintain a DEF system?
How to avoid contaminating DEF
- Only ever use approved DEF.
- Do not store DEF in containers that have previously held other fluids.
- Keep the DEF fill area on the truck clean (this is a common cause of contamination)
- All DEF containers and recommended filling equipment should be kept clean and free from damage.
Can a doc be cleaned?
When Is It Time To Have Your DPF or DOC Cleaned? A good rule of thumb is to go in for a cleaning about every 200,000 miles or less, depending on your duty style. It is possible to burn off this excess ash and soot on your own using either passive or active regeneration.
How often should you change DEF?
The DEF Dosing Unit Filter will need to be replaced about every 200k miles as part of routine maintenance.
Is the aftertreatment system a good or bad thing?
Aftertreatment systems have led to a significant reduction in the emissions pouring from the engine. However, they’ve acquired a reputation as a thorn in fleets’ sides thanks to significant maintenance costs.
Why is aftertreatment so important in a car?
“Significant effort and progress has been made in on-board diagnostics to catch such issues before damage is done to the DPF, and a well-maintained engine and aftertreatment system are vitally important to minimizing DPF issues.”
What are the components of the aftertreatment system?
There are three components to the engine aftertreatment system: the diesel particulate filter (DPF), the diesel oxidation catalyst (DOC), and the selective catalytic reduction (SCR).
How long does aftertreatment last on International trucks?
This has extended time between maintenance intervals with trucks that average over 6.5 MPG experiencing DPF maintenance intervals of 600,000 to 800,000 miles, which in some cases extends beyond the first owner.” International Trucks also uses the Cummins Single Module Aftertreatment System in its A26 engine.