How much does DEF cost you?

Not a thing. Thank goodness I don't have a so called green engine....

 

I spend roughly $30 per week on it. Average 200-250 mpg on the def.

 

$2.79 gallon for DEF, which is what it was, has been FOREVER, except when fuel went way down it went up.............but anyway @$2.79 gallon cost me $0.01 per mile for DEF, and I ask the boss for the penny and he said no.

 

$2.79 DEF is ridiculous. Although you don't use much, they still gouge the price at the major truck stops.
The cheapest I've found is $1.99

 

For 2017 YTD:
Gallons def.....203.364
Def cost...........$569.85
Miles..................44,689
MPG Def............219.75
Avg per gal... $2.80211
Cost permile..$0.01275

TA

 

$1.99 delivered to my house. I buy it in bulk and pump out of a tote. It's roughly a penny a mile for my operation.