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Soot Count?
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Soot Count?
I asked a question at the end of an old thread a couple of days ago and I don't think anyone saw it so here goes again.
gsxr1300 said
And I asked if that was a good thing or a bad thing?
I am trying to understand these $60,000.00 + trucks in preparation for ownership.
Thanks, Phuzzy
gsxr1300 said
I didn't use optilube xpd on his last tank and it seems like my soot count on my edge insight cts is going up much slower
I am trying to understand these $60,000.00 + trucks in preparation for ownership.
Thanks, Phuzzy
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From: Roll Tide, Roll
The slower your soot count is a good thing. But your after the further you go in miles before a regen.these things are hard to judge on soot count. Sometimes they will climb fast then go really slow.so without doing several tanks. Driving about the same, its really a crap shoot.
Fleet Owner
Joined: Mar 2012
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From: Wisconsin
I'm not commenting on the quoted part as I've never used optilube xpd and can't offer any insight on whether that statement is true or not.
Soot is inevitable in a diesel engine. The purpose of a regen cycle is to burn soot build up off the Diesel Particulate Filter (DPF). The purpose (intent) of the DPF is to filter the soot out of the exhaust and provide cleaner exhaust.
So the claim that soot count is going up slower is most definitely a good thing to happen. Why? Slower build up of soot requires less frequent regen cycles. Regen's use fuel to burn off the soot in the DPF leading to high EGT and lower mileage during a regen.
Hopefully that answers your question
Soot is inevitable in a diesel engine. The purpose of a regen cycle is to burn soot build up off the Diesel Particulate Filter (DPF). The purpose (intent) of the DPF is to filter the soot out of the exhaust and provide cleaner exhaust.
So the claim that soot count is going up slower is most definitely a good thing to happen. Why? Slower build up of soot requires less frequent regen cycles. Regen's use fuel to burn off the soot in the DPF leading to high EGT and lower mileage during a regen.
Hopefully that answers your question
Postmaster
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From: Maryland
I have never used Optilube, but in general, additives seem to create soot faster in my truck. Some seem worse than others. Cetane boost should make the fuel burn cleaner, but I'm guessing the lube properties are causing more soot. Think of is as adding 2 cycle oil to gasoline and watching a chainsaw smoke! I know there is a huge concentration difference, but you get the idea.
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From: Roll Tide, Roll
Another that may help if your addative is a cetane booster. And the fuel you bought the cetane rating was plenty high enough then you add more cetane to it. Can acually go to high which lowers combustion.so you dont produce as clean a burn, which makes more soot.
But since we dont carry a lab with us its a guess at what cetane fuel your really putting in your truck.
But since we dont carry a lab with us its a guess at what cetane fuel your really putting in your truck.
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Joined: Feb 2012
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From: San Marcos, TX
For me, town driving builds soot much quicker than highway driving. Actually, highway driving can remain neutral as the passive regen burns it away as fast as it builds up. The amount of DEF used is negligible and overplayed by Dodge and some others. I'll take the power in the trade off any day.
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