DEF Mixture- Distalled / Deionized Water 10-17%

[TCDiesel]

Even when the Ammonia sensor was present again it detected ammonia , even very small amounts of Urea will create ammonia in the evaporation process of the water in SCR , their was no longer the Need for the sensor so it was removed... You can still meet the laws requirement ACA... 95% of the time with considerable less concentration. if you measure the NOx by volume , you would need to drive the vehicle over 1 million miles to create 7-10oz of NOx at 5% I'm just guessing at this because it would take years of Data to calculate exactly would it would be.

 

[sag2]

Diagnostic for my truck.

Theory of Operation
The Diesel Exhaust Fluid (DEF) Quality Sensor is mounted to the DEF tank and is used to detect the concentration of the DEF. The DEF Quality Sensor shares information with the Powertrain Control Module (PCM) over the J1939 Data Link. This diagnostic monitors the DEF concentration, and the PCM will have the Electronic Vehicle Information Center (EVIC) display a warning message based on what the DEF Quality Sensor detects. “Incorrect DEF Detected See Dealer” will be displayed if the DEF Quality Sensor detects the DEF concentration has fallen below normal. “Service DEF System See Dealer” will be displayed if something other than a DEF concentration error has been detected, or if the sensor is unable to determine the DEF concentration value. Either message will be displayed when this monitor runs and fails in one trip, and the PCM will illuminate the MIL when the diagnostic runs and fails in two consecutive drive cycles. Once the monitor runs and fails, the PCM will then run the monitor continuously until a pass decision can be made. The PCM will turn off the MIL when the diagnostic runs and passes in three consecutive drive cycles, and will only turn off the EVIC message when the monitor runs and passes, or the PCM is reflashed. Clearing the code will not erase the message.

• When Monitored:
  This monitor will be triggered 300 seconds after ignition-on or refill. Also, the DEF fluid temperature measured by both the DEF Quality/Temperature Sensor and the DEF Level/Temperature Sensor must be above 3°C (37°F). The Diagnostic is delayed at a temperature below 10°C (50°F) for 30 minutes before running and will be paused if the vehicle speed drops below 4.8 km/hr (3.0 mph) for 240 seconds.
  
  
• Set Condition:
  The DEF Quality Sensor detects that the DEF concentration has fallen above or below a calibrated threshold, something other than DEF has been detected during the monitoring period, or the DEF Quality Sensor is unable to determine the DEF concentration value during the monitoring period.

 

[Wayne M.]

The DEF quality sensor (also known as a Urea Quality Sensor) is different from the ammonia sensor that they got away from. The UQS is in the tank and can look at the tank contents even before it gets in the system.
IMHO brewing your own DEF is not a good idea if your truck has this sensor.

 

[Wayne M.]

I just realized that a coworker has a 2018 2500, and he allowed me to look at his emission label, and sure enough, just like the Fords, it’s equipped with RDQS, which is a Reductant Quality Sensor.
If anyone is curious as to weather their SCR equipped truck has the RQDS, simple look for it on your under hood emission label.

 

[kthaxton]

Still can't figure out what problem this is a solution to.

 

[TCDiesel]

Anyone is welcome to come and Test MY DEF, if its above 20% I will pay You $1000.00 for checking it.

 

[TCDiesel]

Set Condition:
The DEF Quality Sensor detects that the DEF concentration has fallen above or below a calibrated threshold, something other than DEF has been detected during the monitoring period, or the DEF Quality Sensor is unable to determine the DEF concentration value during the monitoring period.

LMBO..... form the same source that forgot to turn on the Fuel Heater.

 

[Wayne M.]

Anyone is welcome to come and Test MY DEF, if its above 20% I will pay You $1000.00 for checking it.

Put 20% DEF in a RDQS truck for long enough, and you’re getting derated.

 

[TCDiesel]

Still can't figure out what problem this is a solution to.

Its an option for thinking people....

 

[TCDiesel]

Put 20% DEF in a RDQS truck for long enough, and you’re getting derated.

Is 3 years long enough.

 

[TCDiesel]

I've tested DEF all over the Midwest-west, its rarely 33.5% it +-2-5%.

 

[Wayne M.]

I've tested DEF all over the Midwest-west, its rarely 33.5% it +-2-5%.

I think that’s in the window IF your truck has the RDQS. TC, does your truck have one?

 

[Wiredawg]

Todd,

What does it cost per gallon? It's always an option, just like making it to 35% concentration.

Thanks, Ron

 

[TCDiesel]

Test trucks, 2015 Ecodiesel, 2015 Duramax, 2013,14,16 Ram 6.7 Cummins.

 

[TCDiesel]

Todd,

What does it cost per gallon? It's always an option, just like making it to 35% concentration.

Thanks, Ron

Distilled water $0.80 to $1.29 at any Grocery store.

 

[Wiredawg]

Distilled water $0.80 to $1.29 at any Grocery store.

Todd,

I purchase distilled water all the time, what does the UREA cost? I'm slow today...please help me out. Thanks.

Cheers, Ron

 

[TCDiesel]

Urea priced out Per pound and I'm not at liberty to share that cost... It (DEF) 67/33 can be manufacture at around $1.20PG +- 0.10

 

[TCDiesel]

You can buy Urea at about $2.00 Per Pound Retail. Mix it at about 32OZ PG will net 28-30% concentration, Buy a decent Refractometer for (DEF) and follow this> I run 15-18%. Urea Purity will dictate the amount no matter what you do You just add more water or Urea to get the concentration your happy with.

 

[CBari]

OK, I buy into your argument, but what made you settle with 15-18% Did you try other percentages first and have issues?

 

[Wiredawg]

Urea priced out Per pound and I'm not at liberty to share that cost... It (DEF) 67/33 can be manufacture at around $1.20PG +- 0.10

That's why I was confused... UREA is a solid, not a liquid. I found 40lb bucket 99.9% pure of it for $50. Now, I make sense of it.

Thanks, Ron