2019 Dodge story- DEF in fuel
- Thread starter NorCalBusa
- Start date
DefyInertia
Original Saratogian
DEF filer is under the hood in my MB sprinter van (2017). Pain in the ass but whatever. I have a RENNTECH tune that I love...it retains all the stock emissions equipment.
Kornholio
:wave
:shhh
Let the "bros" keep thinking they're smarter than the engineers that designed the system. Although, if they just left the shit alone and actually let it do its intended job, they'd be just fine. It'd be even better if they actually educated themselves on why its necessary in the first place. But I digress...
brichter
Spun out freakshow
Just needs injectors every 40k miles
Sure, if it were an LB7. It’s not. :laughing
273,000 miles, still on the originals and balance is well within specs. :thumbup
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JesasaurusRex
Deleted User
Ah, is that the first year they changed from the lb7? I had an 02, when i got rid of it with 265k on it i was on my 4th set. Loved that truck except for that. The pump rub transfer case deal was annoying too.
Jalopyshoppe
idiot
I think there are good and bad years of OEM emissions systems. The early Fords with the advanced pollution controls were awful and got abysmal fuel economy. I know that the factory engineers are absolutely competent, but sometimes the accountants hamstring the best ideas.
Modern diesels are incredible, but I think they could be better still.
As far as the bros, it's unfortunate that some people will be that way. While I have a "hopped up" pre smog diesel, none of my tunes roll coal. I'm a firm believer in efficiency above maximum power.
brichter
Spun out freakshow
Nope, the LB7 was 01-04 and it was the first one, with problematic injectors. Then there was the LLY for 04.5-05, they still had problematic injectors, but you didn’t have to remove the valve covers to change the injectors so it cost less money to replace them when they went bad. :laughing
Then came the LBZ in the 06 and 07 Classic trucks with no injector issues, the six speed Allison, and no DEF/DPF. I spent over 2 years looking for mine, and had to go east of Sacramento to buy it because everybody in the greater Bay Area buys the four-door crew cab with that silly little 5 foot bed. :rolleyes
Abacinator
Unholy Blasphemies
My friend bought the same truck a month ago. Spent 20 grand for a truck with 170k and shit paint. Guess it's worth it for the LBZ :dunno
Kornholio
:wave
:thumbup
It has been a learning process for every manufacturer who's basically had the last 10-15 years to get it right. Decades from now, it'll be a no-brainer engineering process, I'm sure.
Deutz used to make some of the most reliable and best performing four-stroke air-cooled diesel engines, but then they had to start complying with Euro standards and especially T4F here in the states which meant water-cooling and SCR and DPF systems. To this day, they still cannot engineer and build a reliable SCR system that just works like all of their competitors have been doing for years. The engines constantly find themselves in limp mode and always when the equipment is needed to work the most reliably. I'm not sure what their problems are with the issue and quite frankly always expected more out of literally the oldest engine manufacturer in the world that's still in business today. You'd think they'd certainly have the money available to bring in the best talent in that regard anyway. :dunno
Also, believe you me, I'm not against a good tune. But yeah, rolling coal doesn't even provide maximum power. All you're doing is over fueling for the sake of a visual effect.
scootergmc
old and slow
I just want an HD hybrid Cummins diesel with a 1000 mile range. Do it already please.
I have never heard of DEF.
So, the geek in me...
DEF is a 32.5% solution of urea, (NH
2)
2CO. When it is injected into the hot exhaust gas stream, the water evaporates and the urea thermally decomposes[6] to form ammonia (NH
3) and isocyanic acid (HNCO):
(NH
2)
2CO → NH
3 + HNCO
The isocyanic acid reacts with the water vapor and hydrolyses to carbon dioxide and ammonia:
HNCO + H
2O → CO
2 + NH
3
Overall, thus far:
(NH
2)
2CO + H
2O → 2 NH
3 + CO
2
Ammonia, in the presence of oxygen and a catalyst, reduces two different nitrogen oxides:[7]
4 NO + 4 NH
3 + O
2 → 4 N
2 + 6 H
2O and
6 NO
2 + 8 NH
3 → 7 N
2 + 12 H
2O
The overall reduction of NO
x by urea is then:
2 (NH
2)
2CO + 4 NO + O
2 → 4 N
2 + 4 H
2O + 2 CO
2 and
4 (NH
2)
2CO + 6 NO
2 → 7 N
2 + 8 H
2O + 4 CO
2
Edit... that did not copy well. But still, pee?
So, the geek in me...
DEF is a 32.5% solution of urea, (NH
2)
2CO. When it is injected into the hot exhaust gas stream, the water evaporates and the urea thermally decomposes[6] to form ammonia (NH
3) and isocyanic acid (HNCO):
(NH
2)
2CO → NH
3 + HNCO
The isocyanic acid reacts with the water vapor and hydrolyses to carbon dioxide and ammonia:
HNCO + H
2O → CO
2 + NH
3
Overall, thus far:
(NH
2)
2CO + H
2O → 2 NH
3 + CO
2
Ammonia, in the presence of oxygen and a catalyst, reduces two different nitrogen oxides:[7]
4 NO + 4 NH
3 + O
2 → 4 N
2 + 6 H
2O and
6 NO
2 + 8 NH
3 → 7 N
2 + 12 H
2O
The overall reduction of NO
x by urea is then:
2 (NH
2)
2CO + 4 NO + O
2 → 4 N
2 + 4 H
2O + 2 CO
2 and
4 (NH
2)
2CO + 6 NO
2 → 7 N
2 + 8 H
2O + 4 CO
2
Edit... that did not copy well. But still, pee?
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cheez
Master Of The Darkside
Just got my little green cap, popped right into the Diesel fill neck under the filler door.
Yeah. Pig piss, and you can smell it in the exhaust. I couldn't figure out the smell the first few times I drove my new 6.7 Cummins but upon seeing it Fish goes "you put any pig piss in it yet?" and the light bulb over my head probably set off the seismometers from the force of the explosion with the intensity of the realization that was, indeed, the smell I'd been smelling around my new truck that I loved so much.
Meh. I wanna do right by mother nature but I need the torks for the draggin things for long distances and the e-solutions just aren't gonna get there in the next decade. But yeah, pig piss, and YUCK.
+1 with the "where's my hybrid Cummins with e-boost launch assist and charge recovery engine braking goodness (for under $100k)?"
Yeah. Pig piss, and you can smell it in the exhaust. I couldn't figure out the smell the first few times I drove my new 6.7 Cummins but upon seeing it Fish goes "you put any pig piss in it yet?" and the light bulb over my head probably set off the seismometers from the force of the explosion with the intensity of the realization that was, indeed, the smell I'd been smelling around my new truck that I loved so much.
Meh. I wanna do right by mother nature but I need the torks for the draggin things for long distances and the e-solutions just aren't gonna get there in the next decade. But yeah, pig piss, and YUCK.
+1 with the "where's my hybrid Cummins with e-boost launch assist and charge recovery engine braking goodness (for under $100k)?"
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buellistic
Well-known member
So basically your saying we have to buy Pig piss..to burn with our Dinosaur fuel.
To be smog complaint..?
Kornholio
:wave
In short, in my shop, it's usually known as cat's piss. It definitely smells similar. :laughing
Abacinator
Unholy Blasphemies
We make sure to top off the pee tank on all the bluetec mercedes that come in for service!
kpke
Veteran
Those DEF stories are horrible.
I'm beginning to think I made an "investment" on this truck (until something breaks). I have about 20K in to it after a diesel checkup, rear brakes (I replaced), tires ($$$$), and some other fixes, with less than 80K on the clock. Wasn't crazy about the color either. It's "pretty" but I would prefer white. Beggars can't be choosers though.
Does a truck like this qualify for the "brodozer club"? I really want to join. :rolleyes It's not lifted, not 4wd, and mostly stock.
scootergmc
old and slow
ISB? The Bros call it a "five nine."
Climber
Well-known member
The problem probably is that the old geezers in the company still have enough power that they won't let the young guns have full say in the development. My brother and I have run into that kind of crap in the engineering world, the dinosaurs in the company don't want to admit that the world has passed them by yet still retain enough build-up of service to have more power/weight than they should.