How long is the Detroit One-Box supposed to last?

Chevron's new Delo 600 ADF: They say that the metal lubricants in oil that eventually end up in the combustion stream make their way to the DPF filters and they don't burn off but in fact are getting trapped in the filters and shortening the life of the filters. The 600 semi synthetic is manufactured without said lubricants, so Chevron claims. I've no affiliation.

 

Have you done software updates to your truck often? I was having emissions issues with the def pump, sensors, you name it.. turns out there's a few service bulletins and tech literature from freightliner talking about updating to the latest software to minimize or eliminate these issues. Provided you don't idle... Not saying it was your issue, but could be a factor. Mine is a GHG17 2016 DD13. Currently at 805k with the original onebox and filters. Def pump, doser, nox sensors have all been replaced in the past two years.

Dales diesel onebox.. .where is he getting it from? There's dinex and roadwarrior doing these it seems? I read and heard very conflicting reviews about the aftermarket boxes. Cracked welds, overheating issues... Just to name a few. Both of these companies outright refusing to honor the warranty most often than not... And just imagine going through That while your truck is down and you are not making money?

 

I'm at 805k on mine. Can give you stats on the rest of the engine if you want.

 

currently at aprox. 1.345.000km / 835k miles. Got the truck at 722.000km / 450k milehs. at least for the past 4.5 years i know 100% that the dpf filters have never been cleaned, because i was the sole driver. Before it only had a dedicated driver (fleet truck, company i work for) and i don't recall he telling me that he had emissions issues.

Despite not idling the truck overnight and barely anything throught the day (i don't even have 3800 engine idle hours in 10 years), i keep having weird/unexplained emissions issues? Latest one is my NOX outlet sensor... replaced it 1 month ago, after having the code spn3226 FMI 20 on and off... passed both regens with flying colors and low and behold.... emissions light came back on. So, truck is already in the shop and the plan is to replace:

-dpf filters (never changed, never cleaned profissionaly. Only passive regens) with brand new alliance ones
-replace entire ACM to sensors wiring harness (just in case there is some issues with the harness given how old it is...

Some people keep telling me that at 800+ miles you do need a onebox but i am hopeful... your take? Truck runs perfect. Coolant and oil samples show no contaminants. Truck doesn't burn oil either and i use full synthetic.

Onebox - OEM (acm, metering valves, pressure lines, never changed)
DEF Pump: 1 year old
DEF doser: 5 months old
NOX inlet sensor: 1 year old
NOX outlet: sensor: 1 month old

 

i realize its

i realize it is not Freightliner, But my Mac required itvat 200,000 miles, things went down hill from there, warranty wouldn't cover the problem, just the damage nest winter anotjer 2 weeks down to fix the problem too ad Volvo had to ruin a good truck,

 

Some people keep telling me that at 800+ miles you do need a onebox but i am hopeful... your take? Truck runs perfect. Coolant and oil samples show no contaminants. Truck doesn't burn oil either and i use full synthetic.

Onebox - OEM (acm, metering valves, pressure lines, never changed)
DEF Pump: 1 year old
DEF doser: 5 months old
NOX inlet sensor: 1 year old
NOX outlet: sensor: 1 month old[/QUOTE]

I have a 2017 DD15. I had a constant battle with that same code. spn3226 FMI 20 .
I have done the same as you over the last 2 years.

That code had continuously come on until I replaced most of the EGR parts. Also replaced all sensors and parts that bolt on to the Onebox and the DPF. Some say that is excessive. Only replace the parts as they wear out. I always look at the cost on the road versus cost at home. Cost at home is cheaper, even if I replace some parts before they wear out.
I have driven 60,000 code free miles since the above work. I have 795,000 miles on truck.
I have a scan tool to reset codes to get home for repairs, when needed.

 

I believe 800,000 miles is when they start to fail. The precious metals within eventually decay away. Most urgent attention to pay mind to is EGR coolant leaks. They're typically going downstream into the box and are highly corrosive. If you're losing coolant, have the truck's cooling system pressure tested. If you don't find the source, there is another pressure test. A Detroit that caps off the EGR cooler and has a pneumatic adapter to pump air into it to determine if it is leaking. Your dealer will have one but make sure your tech knows what your talking about when you ask to pressure test the EGR cooler. Some of these virgin mechanics fresh out of school will jump the gun and test your cooling system again.

 

That's odd because there is an SPN code that triggers at a certain mileage. I believe 500,000miles to replace the DPF filters. More recent engines use a fuel metering calculation.
GHG17 with approved oil
Normal DPF ash clean interval is 500,000 miles (800,000 km) 11,000 hours to 550,000 miles (880,000 km) 11,500
hours

GHG14 with approved oil
Check Engine Light will illuminate when ash requires removal. Normal DPF ash clean intervals are 300,000 miles
(480,000 km) 9,000 hours to 400,000 miles (640,000 km) 10,250 hours

I believe the code is SPN 3720.
Serial numbers of the new filters are entered into the ECU to clear the code

Personally I feel that the replacement cost for new filters compared to cleaning is warranted.

 

Bought my 2016 Cascadia used in 21 with 550k filters were changed by first owner at 412500, I changed them at 965k the truck has had a generator it's entire life so I have 18700 hour's with 1012000k on my One Box and still going. And Lockport is correct you will get a code for DPF end of life it won't shut you down or derate you, I know because mine did.

 

No way! i wouldn't say that's excessive at all. A lot of the times, the dudes that say that are the ones constantly idling their trucks. I fully believe in your approach. You are not that far off from me, when it comes to mileage, and we have by the looks of it, replaced most of the stuff was well around the 1-box. See this thead for longevity, at least according to the poster: How long is the Detroit One-Box supposed to last? and this one, right before mine: How long is the Detroit One-Box supposed to last?