Just got back from 1100 mile (including local commuting) round trip from Middle Georgia to Sarasota Florida. First lengthy trip with my new (to me) 2014 Ram 2500 CTD, and my new 2016 Prime Time Lacrosse.Diesel mileage was decent enough. Towing was 11.5 MPG. Haven't computed my overall trip mileage (towing and commuting). Im happy with 11.5 as around town commuting I get right around 13.What really impressed me was the DEF mileage. I topped the DEF tank off before I left. Added 2.5 gal. Now, admittedly, the gauge was over full, but upon return from the 1100 mile trip, the gauge is at 7/8ths full! I figure I used a quarter tank of it, in reality, which is pretty dang good. 5 fill ups total, and it used less than when commuting around town. I thought towing I'd use more DEF, but apparently not.I think I got some of that US Buffalo urine DEF instead of that Chinese mouse urine. I did buy it from Walmart tho.Pretty happy with truck performance.Mike

Im just stepping into the world of urea as well, Im curious if def is def, or if canadian bull moose urine might be better.

I am interested in trying the Canadian Moose. Im betting it's as least as good as the US Buffalo stuff, and who knows. Could be better. Plus, with the exchange rate the way it is, might be even a better deal.Mike

I am not positive, but my 2015 Ford F250 supposedly will get 5000 miles with one tank of DEF. I assumed this was normal. I may be remembering wrong as I read the manual a while ago. I am at 3000 miles now and last check said below 1/2 full - not an exact number like your truck.

Yeah, before I topped it off for the trip, I had four fill ups (not sure of the mileage), and was between 1/2 and 3/4. That was as purchased from the dealership. Gauge read full, but it might not have been "FULL". I don't think my manual said how many miles I could get per tank of DEF.As far as the "exact number", I came up with 7/8 as the gauge is between 3/4 and full. I have nothing to compare my mileage to, since I have no experience other than this truck with DEF vehicles. I had only heard/read that I would use more DEF towing, and it doesn't seem to be the case. Mike

Walaby wrote:Just got back from 1100 mile (including local commuting) round trip from Middle Georgia to Sarasota Florida. What really impressed me was the DEF mileage. I think I got some of that US Buffalo urine DEF instead of that Chinese mouse urine. I did buy it from Walmart tho.MikeGoogle: "Is all DEF the same"?Here's a link to PPC Lubricants that covers that question pretty well."Is all Diesel Exhaust Fluid the same?"Check the stds & req's.BTW - Kinda like the John Deere slogan when it comes to urea source/s - Nothing runs like a Gazelle or a Cheetah...:W~

Outstanding DEF Mileage | Good Sam Community

Cummins12V98
Explorer III
Mar 27, 2016
Unless you fill the tank to the top then later do the same and figure usage per gallon you really have no idea if your usage is good or bad.

Glad you like your truck! 11.5 is great mileage even with a lighter 5er.
Sport45
Explorer II
Mar 27, 2016
Walaby wrote:
As far as the "exact number", I came up with 7/8 as the gauge is between 3/4 and full.

I wouldn't trust the gauge to be linear. The only way you'll really know how much DEF you used is to fill it up again and see how much it takes.

My guess is it will take the better part of a gallon to top it off again.
ol_Bombero-JC
Explorer
Mar 27, 2016
Walaby wrote:
Just got back from 1100 mile (including local commuting) round trip from Middle Georgia to Sarasota Florida.

What really impressed me was the DEF mileage.

I think I got some of that US Buffalo urine DEF instead of that Chinese mouse urine. I did buy it from Walmart tho.

Mike

Google: "Is all DEF the same"?

Here's a link to PPC Lubricants that covers that question pretty well.

"Is all Diesel Exhaust Fluid the same?"

Check the stds & req's.

BTW - Kinda like the John Deere slogan when it comes to urea source/s - Nothing runs like a Gazelle or a Cheetah...:W

~
Walaby
Explorer II
Mar 27, 2016
Yeah, before I topped it off for the trip, I had four fill ups (not sure of the mileage), and was between 1/2 and 3/4. That was as purchased from the dealership. Gauge read full, but it might not have been "FULL". I don't think my manual said how many miles I could get per tank of DEF.

As far as the "exact number", I came up with 7/8 as the gauge is between 3/4 and full.

I have nothing to compare my mileage to, since I have no experience other than this truck with DEF vehicles. I had only heard/read that I would use more DEF towing, and it doesn't seem to be the case.

Mike
Nunyadamn
Explorer
Mar 27, 2016
I am not positive, but my 2015 Ford F250 supposedly will get 5000 miles with one tank of DEF. I assumed this was normal. I may be remembering wrong as I read the manual a while ago. I am at 3000 miles now and last check said below 1/2 full - not an exact number like your truck.
Walaby
Explorer II
Mar 27, 2016
I am interested in trying the Canadian Moose. Im betting it's as least as good as the US Buffalo stuff, and who knows. Could be better. Plus, with the exchange rate the way it is, might be even a better deal.

Mike
MudChucker
Explorer
Mar 26, 2016
Im just stepping into the world of urea as well, Im curious if def is def, or if canadian bull moose urine might be better.

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