Why buy DEF in a box?

def has a expiration date , it's corrosive also. You know they never sell a complete tank full so they add to it at TS.

 

One of these days a trucker is going to be showing on YouTube how to make your own DEF! Yup, it’s time to put those darn bottles to good use!

 

You could do it. Just test it.

I’d delete or get an older truck personally.

 

Thank goodness I don’t have to deal with it anymore

 

So what’s the formula yo? I’m ready for some cookin’.

 

substance addiction ? looooool

 

It’s 33% urea the rest is just water. Probably distilled so it doesn’t clog up your dpf.

yeah my truck has a c12 in it so no def for me.

 

It's also a viable option if you need DEF and the bulk pumps freeze. I know they're susceptible to that, I've seen it happen. DEF before dishonor, man

 

I know a lot of folks are saying that DEF freezes at the pumps, but it’s really not that serious anymore. Those problems were much more common when DEF was new in trucking. It’s 2019 now, and many truck stops now have insulation on their DEF pumps, especially the big chains. I have never carried DEF in my truck nor have I ever run out of that stuff. I’ve been trucking since 02/2013.