DEF Mixture- Distalled / Deionized Water 10-17%

[TCDiesel]

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

Its my best guess to meet the Near 0 PPM 95% 0f the time and keep the system from having issues... I just did NOT have the time to test different levels with the Analyzer....Plus the Eco exhaust is split Duals and it was a PITR to swap sides.... It would have been better to run it on single exhaust like the 2013 has. The Eco was differently effecting the results to the conditional software. I just don't have the time for the next several years to do further testing....

 

[Learjet]

I read the whole thread so far....I didn't see an answer to whether are not you are using more quantity of fluid with the lower concentration? I thought the DEF controlled Nox (?)...wouldn't the truck pump more DEF to keep the Nox in check?

I'm not an expert...please be gentle

 

[Wayne M.]

Gentlemen, I’m not here to slam TC, he’s is an accomplished member here on the TDR, but I think he’s missing something. His idea is not good for all SCR equipped Rams (or any Diesel).
I really would like to see the VECI label from his truck that he’s tried this special brew on.
I do not think he has a reductant (urea) quality sensor in his truck.
Below are 2 labels of co workers Rams. One is a ‘17 Eco, and the other is a ‘18 2500. Both of these have RDQS, and have a tight limit on diluted DEF, as sag2 proved in his paste of that service info page towards the beginning of this thread. The normal strength is 34%, and I’m believing the low threshold is around 31%. If your truck has RDQS on the label, as I show below, I really think you should stick to your program. You will have trouble if you over-dilute your DEF tank.

 

[Wayne M.]

I read the whole thread so far....I didn't see an answer to whether are not you are using more quantity of fluid with the lower concentration? I thought the DEF controlled Nox (?)...wouldn't the truck pump more DEF to keep the Nox in check?

I'm not an expert...please be gentle

It’s my belief that there is a small window for DEF dosing rate, so I don’t think it will compensate. I’m thinking TC has found the limit for urea to be effective in Nox conversion, and the Nox readback to be happy.
In the case of the newest trucks, if diluted fluid even hits the tank, the quality sensor will pick it up when it’s activated, again, refer back to sag2’s post to read up on how it works.

 

[AH64ID]

It seems to me that more of 15-18% DEF would be utilized, as the urea is what reduces NOx. So at 15-18% is the dose rate 3-5% of fuel, vs 2-3%?

So to me it seems TC is not trying to reduce cost/use of DEF but rather reduce the percentage to extend component life.

Also, what would keep someone from just adding 1 gallon of distilled water to 3 gallons of DEF in their tank? Or is that how you are mixing it?

 

[Wayne M.]

It seems to me that more of 15-18% DEF would be utilized, as the urea is what reduces NOx. So at 15-18% is the dose rate 3-5% of fuel, vs 2-3%?

So to me it seems TC is not trying to reduce cost/use of DEF but rather reduce the percentage to extend component life.

Also, what would keep someone from just adding 1 gallon of distilled water to 3 gallons of DEF in their tank? Or is that how you are mixing it?

John, go for it. Your ‘18 has the sensor. Let us know how you do! (Famous line from that Van Halen song).

 

[gsbrockman]

It’s my belief that there is a small window for DEF dosing rate, so I don’t think it will compensate. I’m thinking TC has found the limit for urea to be effective in Nox conversion, and the Nox readback to be happy.
In the case of the newest trucks, if diluted fluid even hits the tank, the quality sensor will pick it up when it’s activated, again, refer back to sag2’s post to read up on how it works.

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.

 

[TCDiesel]

The latest truck I"ve tested this 2016 , The Owner Started this practice after His Clogged Injector Left Him Stranded in CANADA, just before He had his DEF Pump replace...What do You think destroyed his PUMP?

This is nothing new to Me, Back in June 2013 when I was putting in My Auxiliary Fuel system I tested the Fuel Heaters, including the one in the Auxiliary system ...Remember that.. It was I that contact FCA in JUNE they denied it was off after I threaten to SUE, They Investigated and found I was correct .....It took FCA 2 months to release the Recall so ALL you naysayer can thank ME because it was ready for 2013-14 Winter remember HOW cold it was in 2013-14?

Don't always believe what companies claim

 

[Wayne M.]

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.

Very interesting! Perhaps it’s another “January 1” situation. All my ‘17 F550’s (new style) have RDQS. I have a ‘15 or ‘16 F350 pickup I can check later.
GS, I guess if you wanted to brew your own, I guess you could. I’m waiting for John’s answer.

 

[JR]

The latest truck I"ve tested this 2016 , The Owner Started this practice after His Clogged Injector Left Him Stranded in CANADA, just before He had his DEF Pump replace...What do You think destroyed his PUMP?

Gee does this sound familiar
This is my 2nd summer on diluted DEF after my injector went TU, and speaking with you in length.
I dismantled my failed injector out of curiosity, I was surprised at the amount of gunk inside. It would be interesting if a filter would have helped to control this build up as the injector is supposed to clear itself out every time you shut the truck off. Which means in theory there shouldn't be any liquid in the unit aside from when it's running.

 

[Learjet]

looks like i have it...

#ad

 

[gsbrockman]

Very interesting! Perhaps it’s another “January 1” situation. All my ‘17 F550’s (new style) have RDQS. I have a ‘15 or ‘16 F350 pickup I can check later.
GS, I guess if you wanted to brew your own, I guess you could. I’m waiting for John’s answer.

Oddly enough.....my engine decal has a build date of 01/18/2018. Truck was built 02/2018.
It would be interesting if @Wiredawg would chime in with the information from his 2017 RAM 5500....

 

[Wiredawg]

Oddly enough.....my engine decal has a build date of 01/18/2018. Truck was built 02/2018.
It would be interesting if @Wiredawg would chime in with the information from his 2017 RAM 5500....

I guess I'm in the the club too of not having it.

Build date on my engine was 18 May 2017. Darn this label is hard to get to. Mine is on top of the rear of the engine. I had to take several pictures to get all info. Where is y'all's located to read it?

Cheers, Ron

 

[Wayne M.]

My ‘15 shop rig does not.

 

[Wiredawg]

This is label on my hood:

This label practically useless as far as I can tell.

Cheers, Ron

 

[sag2]

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.

 

[TCDiesel]

School LOL, The Last School I went to was API, After ripping up all the so-called experts, I went outside and Puked from all their responses, went back to My Motel room and took the next flight I could back home.

I understand that the products need to be certified for public sale ,Thiers NO laws to stop you from manufacturing or changing the concentration levels.

He's the list of API Licensed sellers https://dieselexhaust.api.org/Directory/DefResults?accountId=-1

 

[TCDiesel]

API just want to keep Owners Hostage. ISO/API are holding hands on 32.5% that concentration level is NOT necessary, to Meet ACA levels IMO 95% of operation, The second anyone challenge's their Standard , here come the threats and warnings.....

https://www.fleetowner.com/maintenance/api-warns-truckers-only-use-certified-def

 

[TFucili]

I finally remembered to look

 

[TCDiesel]

What about all the worthless Dealerships Promoting anytime the DEF system fails it BAD DEF, Pay $$$$