Bought my first def yesterday

[Turbo Terry]

At 71.5 years old. New truck came from dealer 3/4 full on the gauge. After 2550 miles it made it to a 1/4 tank. Went by a truck stop. Pretty nice installation rather new. Heated nozzle. Use you credit card $5.00 a gallon it took 4 gallons Bought 20 gallons of diesel $5 .02 a gallon life is good. Not cheap to drive a diesel but the power is worth it. So the def tank must hold 5 gallons. When does it go into limp mode?

 

[lpennock]

It will give you a count down warning starting at 200 miles until 5 mph. No need to fill before the counter starts except you don't want to worry about it while on a trip.

$5/gal for DEF is a bit steep. Costco and Sams has Peak 2.5 gal boxes for just under $12 here in Phoenix. Super Tech at Walmart use to be cheaper but they have raised the prices higher than Peak at Sams/Costco.

 

[Turbo Terry]

But it was handy to just use the nozzle no pouring out of a box

 

[lpennock]

And you get a full tank. Not bad to use the pump, I was just pointing out the price was a bit higher than I would have expected. Pilot/Flying J in Phoenix area is $3.86-$4.00/gal.

 

[Ozymandias]

He's in Alaska, I guess everything is a bit more expensive up there.

 

[Turbo Terry]

Yes a bit higher here in Alaska.

 

[Cummins12V98]

At 71.5 years old. New truck came from dealer 3/4 full on the gauge. After 2550 miles it made it to a 1/4 tank. Went by a truck stop. Pretty nice installation rather new. Heated nozzle. Use you credit card $5.00 a gallon it took 4 gallons Bought 20 gallons of diesel $5 .02 a gallon life is good. Not cheap to drive a diesel but the power is worth it. So the def tank must hold 5 gallons. When does it go into limp mode?

i advise staying above 1/4 tank. At 1/2 you can add a 2.5 box.

 

[Turbo Terry]

That’s what I thought. Above a 1/4 of a tank. Good advice

 

[lpennock]

I run it down to count down. Def has pretty short self life in Phoenix heat. Probably not an issue in Alaska though.

 

[Ozymandias]

I run it down to count down. Def has pretty short self life in Phoenix heat. Probably not an issue in Alaska though.

Wasn't it like:
100° lasts two months - 32° unlimited shelf life.

 

[Larry Willard]

Yes a bit higher here in Alaska.

Yea, in 2018 I paid $32 for a 2 1/2 gallon box in Skagway, Alaska

 

[lpennock]

Wasn't it like:
100° lasts two months - 32° unlimited shelf life.

Pretty close. Short enough I want it used up by the end of Sept.

 

[Ozymandias]

http://www.rambodybuilder.com/2011/docs/cc/understandingdef.pdf Found a nice PDF, yeah it degrades incredibly fast in Arizona Summer Heat. For Terry, he's fine, up there it lasts forever. So he can fill it a the pump perfectly fine, no need to waste a thought about shelf life or anything related to that topic.

 

[NIsaacs]

$5/gal for DEF is a bit steep. Costco and Sams has Peak 2.5 gal boxes for just under $12 here in Phoenix.

Did you do the math $5 a gallon @ 2.5 gallon jug is $12.50.

 

[lpennock]

Did you do the math $5 a gallon @ 2.5 gallon jug is $12.50.

Yes, which is more than boxed that I buy and about $1/gal more than I'm use to seeing bulk for. But as we have established Alaska prices are higher.

 

[AH64ID]

It’s a 5.7 gallon tank on your ‘22.

I run my 18 down as low as possible before filling it. Sometimes that’s to the warning and other times it’s to 1/4-1/2 tank because I have a towing trip coming up and don’t want to deal with it while on the road.

 

[Turbo Terry]

5.7 good to know

 

[Cummins2014]

It’s a 5.7 gallon tank on your ‘22.

I run my 18 down as low as possible before filling it. Sometimes that’s to the warning and other times it’s to 1/4-1/2 tank because I have a towing trip coming up and don’t want to deal with it while on the road.

I do about the same, I don't put on a lot of miles , so I will run it down to nearly the red mark, then just 2.5 gals . When its trip time I am usually 1/2 tank or so . I buy a jug ,throw it in the fifth wheel ,and off we go .

 

[Minnow101]

^^Similar as I live in SC and the heat will break down DEF. Run the gauge down to 1/8 or warning light, add 1 box, rinse & repeat in 9 months.

 

[Makensmoke]

Watch out those of you who are believing the count down...I got the count down a couple weeks ago while towing and ended up setting a code with over 100 miles on the counter yet.

I got the I told you so from the wife and everything!