Anyone have trouble getting DPF to 650+?

[ErikTheRed]

I've learned that passive regen is occurring at 650+ degrees (I think, depending what/who I listen to) but I have a heck of time getting the DPF to those temps. On the highway (empty), even at 80mph, the Banks EGT3 will usually show somewhere between 600 and 650, with the occasional short-lived temp spike up to 660-670 before it quickly drops down below 650 again. Do any of you fellers experience this? Sure, hook up a trailer or climb some hills and its generally no problem to maintain 650+, but cruising empty on the flats it just doesn't wanna do it. Its hard to clear out my wife's in-town work commute DPF fouling with a highway run when the gulldurn DPF won't get hot enough.

 

[Bret]

Use Archoil. It will help raise the temps some due to the cetane.

 

[ErikTheRed]

Yessir, Ive been using Archoil at the "performance dose" with every tank darn near since I brought it home from the dealership.

 

[Trash Panda]

How long are you driving at that speed?

It usually takes my pickup a bit to get there, but after 20-30 minutes the heat seems to pick up and live pretty close to 700, with spikes up into the 800 degree range even.

 

[Units]

I don’t usually see anything above 650 unless I get about 5g of soot load registering , I can only figure that’s because soot loading of the Dpf helps to hold in heat from the exhaust, once it dips back down to 4g or less I’m usually at 600 - 650 degrees running on the interstate. Running archoil and running on the interstate @80+, in the 600-650 degree range, the estimated soot load will start to drop after about 15 minutes.

 

[56ram2500]

For my 22 I have been seeing faster passive regens at speeds of 50-55 MPH on county roads compared to freeway speeds of 65-72 MPH, I also use Archoil 6500 in every tank, during the winter months ( mid to late Oct to the end of March) I use performance dosage....