DEF Mixture- Distalled / Deionized Water 10-17%

[TCDiesel]

SCR (Selective Catalyst Reduction) Same as SCRC SCRC (Selective Catalyst Reduction Catalyst) Same as SCR.

 

[Wayne M.]

If I can find a little urea to bring the solution back up I would try it. We start school Monday so I'll also use the refractometer to compare the % the truck reports to the DEF from the injector.

I think I can do that on my end too.
I have both the OTC DEF refrac and a basic one.
1310 I think is SG for 34%.

 

[Wayne M.]

This is label on my hood:

View attachment 114779
This label practically useless as far as I can tell.

Cheers, Ron

Hey, Ron. You got something unique there. The blank next to the bar code is where the info should be.

 

[Wiredawg]

Hey, Ron. You got something unique there. The blank next to the bar code is where the info should be.

Wayne,

Nothing special about my truck I'm aware of, other than being a 5500. Reading the engine tag looks like typical emissions setup.

The environmental sticker is a real mystery.

Cheers, Ron

 

[Wiredawg]

I decided to check my 2018 RAM 4500.......all it said was EGR, PTOX, and SCRC.
Must be the detuned hp or the fact it’s over 14,000 GVWR.

This is label on my hood:

View attachment 114779
This label practically useless as far as I can tell.

Cheers, Ron

Greg,

Is your emissions label like mine, mostly blank AND got your info off your engine sticker or was it actually on your emissions sticker?

Not sure you can read my engine label which says EGR, PTOX, and SCRC also.
Ron

 

[Ozymandias]

Hey, Ron. You got something unique there. The blank next to the bar code is where the info should be.

Even on a cab/chassis?

 

[Wayne M.]

Even on a cab/chassis?

Ford C&C, yes.

 

[Learjet]

my sticker was on the underside of the hood...not the engine?

 

[Wiredawg]

my sticker was on the underside of the hood...not the engine?

My environmental sticker is underside of the hood too. Mine, and likely yours too has an ENGINE sticker waaayyy back behind the rise on the valve cover. It was months ago, where I tried taking pictures of my engine sticker/tag because I cant read it laying on the engine. Here's a pic of it shooting straight back over the valve cover.

Cheers, Ron

 

[Learjet]

my engine sticker is different

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[gsbrockman]

Greg,

Is your emissions label like mine, mostly blank AND got your info off your engine sticker or was it actually on your emissions sticker?

Not sure you can read my engine label which says EGR, PTOX, and SCRC also.
Ron

Yeppppppp....exactly as you described. All my info I previously posted was on my engine decal.

 

[Wayne M.]

Here is a label for a current model (new style) F550. Note the different OBD and EPA categories. Still has RDQS though.

 

[TCDiesel]

IMO RDQS is NOT a quality sensor, the entire system is base on Injection rates of 32.5% concentration ..Can anyone produce a Part # for this so-called sensor in that system anywhere that measure the concentration %? The NOx sensors measure the level of the NOx the system adjust the Injection rate Volume of DEF to be INJECTED at the Reductant Injector (AKA DEF Injector)

1st pic Ford
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GM

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Ram 6.7 T05

 

[AH64ID]

So are you seeing an increase in the volume of fluid used?

 

[TCDiesel]

NO.......The NOx is measure and the volume of DEF is increased, weather its 18% or 32.5% or 10%. When you tow you use more fuel the DEF injection rate increases because your using more fuel more NOx created by the usage increase the DEF volume.

When I had the Ammonia sensor I had to be more careful on the % concentration rate. because that sensor suck, it cause all kinds of problems , it was next to impossible to calculate PPM NOx on Ammonia presents. IMO ,Now its X amounts of NOx measured at 2 Sensors = X amount of DEF injected. In the 4 years I had that sensor it trigger that code a 2-3 times, Some owners had all kinds of problems with that sensor... I support its removal and its NOT necessary.

The system adjust the Volume to the NOx level, If you leased the fuel Analyzer You would see their is always leftover Ammonia Just like you smell it. You rarely smell Ammonia at 20% concentration, Have you ever follow a loaded semi in -20F You can smell the wasted DEF. (At Hwy Speeds)

For all the KTs out their 32.5% is just a set amount to cover the worst Amounts of NOx, Let's just say you don't need 32.5% O .. lets say 50% of operation, If you could cut the urea production in half for all the millions of Gallons used each year just think how the Eco system would benefit.... I tried My best to come up with some type of guess on Near 0 NOx VS a few 100PPM released Per Tank 32Gallons, You would have to drive the Vehicle 700K miles just to equal a few OZs or just 1 lighting strike. their are an Avg of 3 Billion lighting strike per Year= 20+Trillion grams of NOx.

 

[Wayne M.]

TC, are you for real? Or does your experience end at 2015?

Go back to page 2. Class 8 trucks use them too. That’s how I knew they existed to begin with. Thank You Mack Truck Factory training.

 

[TCDiesel]

Find Me a Part # for that sensor.



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[gsbrockman]

What year is the application for in the diagram in post #77?

 

[TCDiesel]

EMISSION SYSTEM. EMISSION COMPONENTS. EXHAUST FLUID SYSTEM. 6.7 LITER TURBO DIESEL. (1/1)
This Fits Your 2018 Ram 3500 Laramie Extended Crew Cab Pickup Fleetside 6.7L 6 cylinder DIESEL M/T 4WD

 

[Wayne M.]

It’s probably part of the heater, which is probably #10.
But yea, what application is that diagram for?