fandini

Ordered a new 2017 3500 crew cab long bed 4x4 with the Cummins and Aisen trans. Tell me what I need to know to treat this thing right and stay ahead of the curve on possible repairs and maint.
Thanks
Bill

1-2-3

Always get fresh DEF. I'd look at it before pouring it in. Make sure there's no yellow beads.

fandini

Great info. Never really even thought about that. Is there a date on this stuff?

NJTman

Interesting....
Just had to look it up...

Thanks. Learned something new today..

The 5 Facts and Fiction of Diesel Exhaust Fluid

SOhappy

I would add to that don't trust the stuff you buy at the pump, since it's hard to know how old it is, how clean it is and how warm it's gotten. It costs a little more, but now I only buy the stuff on the shelf.

Anyway congrats on the new rig! They are great trucks. Be sure and post a pic for us.

gsbrockman

Conversely............through around 243k miles, other than about 27.5 gallons of DEF purchased in 2.5 gallon jugs, my truck has performed flawlessly with bulk DEF at the pump...................

1-2-3

I have a 12 so I don't have to use it, but if I did, I would get it somewhere that moves alot of it. At our local Sam's club you see it going out the door all day long.