Amazed at the difference between the 02 vs the 08 on all the maintenance. This regen sounds like a huge headache. Is this why so many are doing the delete?

 

Yep, that and for performance.

 

The regen is not at all a headache in reality. People doing the (illegal) DPF delete are really doing it for two reasons:

• Wanting more than 350HP to play with
• Misinformation and misunderstanding of fuel dilution

With the older firmware that waited until the DPF was fairly full before doing a regen, it was a bit of a problem if your driving pattern didn't give it enough time to complete that longer regen.

With the new firmware that does more frequent and shorter regens, it is less of an issue if a regen gets interrupted and they are less likely to get interrupted since they are shorter.

Even with the old firmware, if you get enough highway time, fuel dilution is around 0.5% or less, a negligable amount that won't hurt anything (numbers from my Blackstone reports).

 

That is right on there. Under the old firmware I could tow cross country with regens about every 130 miles and my fuel dillution would be <.5%.

And that was coming in around 22K gross.

 

so your regens are different now since the new flash?

 

A little. Seem more around 90-100 miles when towing..lasting 6-10 miles during the heavy towing


I have not run it unloaded yet since the flash in July so I don't know how far apart those would be

 

interesting.....

 

Taking a trip out to Colorado and back in 3 weeks. Taking a car and bringing a bringing a load of furniture back this way. I figure maybe 6-7K each way. That will give me a good idea of regens unloaded.

 

Unloaded and with the new firmware and a new DPF the regens seem to be around 300 mi intervals and last perhaps 10 min at most. I also notice the peak temperature shown on the ScangaugeII is a bit lower, however that may be due to the new sensor installed with the new DPF. I haven't noticed a change in the reported average MPG, still running around 14.3 unloaded in 75% highway driving.

 

i regened right at 200 (192-215) miles with 7000lb closed car hauler, after the 112b3 flash. at 70mph.. to and from chicago.. 2800 miles rt.

stock. good thing i had the dashdaq monitor, as the flash took away the message.

Sam

 

This regen thing just seems like so much trouble. Can someone tell me the pros vs the cons of keeping or deleting this system? And is it something the average person can do in the driveway? Thanks so much for all of these responses. Its Great!

 

I probably do 70/30 city/freeway mix these days. Typical commute is <40mph traffic and an 8mile freeway run assuming it isn't backed up. Traffic here in SJ really sux.

Unloaded, it regens around 250~300 if I'm using Diesel Kleen or 200~250 without it. Pretty consistent. Regen on freeway doesn't impact mpgs much, but if I'm regening in traffic, my mpgs go down the toilet for that tank of fuel; hence I interrupt it these days. Using anything other than Shell/Chevron for me yields less mpgs and more regens.

Regens finish in about 35minutes of slow traffic or about 15min on the freeway. I find myself looking for excuses to make a 25mile freeway run out to Gilroy whenever it starts feeling constipated.

I haven't noticed any difference since getting the first 11B23 flash though, so I guess the '09 and '10s already have the latest regen algorithm

 

IMHO it is not that problematic. It does take a bit getting used it is all.

We monitor it as it can also be a tell tale sign of something gone wrong if it changes from the pattern you are used to seeing.

What I like is the clean tail pipes and no excessive smells when standing next to the truck.

 

Not sure how problematic this will be for me, but I wont really see much highway travels at all. Maybe a 10 mile stretch here and there. I don't tow/haul anything ever. Might average 30 miles a day. When I get my truck it will be either an 08 or 09. I will also be lifting it and putting 40's under it. I just love the torque of the diesel and the elegant style of that years. And I drive heavy footed..... So wonder what that's going to do to the truck

 

This, along with the fact that a DPF delete is illegal for on-road use.

The lack of diesel soot on everything isn't exactly bad either. While you might not notice it too much on a pickup, anyone with experience dealing with freight over the past few decades certainly should notice the difference from the old days where your shipment was dusted with diesel soot.