Exhaust Cleaning duration

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Jan 26, 2014 | 12:27 PM

#16

McFarlandkm

Senior User

Joined: Aug 2012

Posts: 214

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Quote:

Originally Posted by 96sherm

I understand this, but it seems backwards to what it should be. You would think that light/conservative driving would create less soot, and pouring the fuel to it while towing would create more. I guess its the exhaust temps that help burn off the soot when you're towing and driving hard.

You nailed it, higher egts help rid the filter of soot so the engine doesn't have to add additional fuel to clean the filter. Under heavy load you will use more def but less Regen.

Jan 26, 2014 | 01:03 PM

#17

kper05

Lead Driver

Joined: Jan 2010

Posts: 6,600

Likes: 84

Higher EGT's and an specific driving method that you learn over time is the key.
If you are too easy, soot builds up, if you drive too aggressively, soot still builds up.