The comments about not needing to worry about freshness at the DEF pump assumes that there is enough DEF volume being used to keep it as such. And that it is being handled and stored during transport and at the final destination properly every single time.
Obviously only a fraction of people that buy diesel fuel also need and buy DEF at the same time of purchase. And an even smaller percentage will use it vs a sealed container. Both should honor a warranty if a receipt can be provided AND it can be proved that bad DEF was a problem.
Personally, I am doing well to accrue 20k miles a year so neither way is a large investment. The difference is so negligible it would be hard to justify from a cost perspective alone. I'd rather pay a little more for a jug that is sealed from the manufacturer vs a bulk dispensery with unknown # of hands changed, handling and storage procedures, etc. It is hard to argue there can be better control than a sealed container from the manufacturer.
That being said, the fact that bulk DEF apparently works so seamlessly is proof that it is not AS critical as some make it out to be. We've had cranes equipped with SCR show up on the job site with zero inspection papers aside from transport for 12-15 months. Hard saying how much older than that the DEF is but I can tell you draining the tanks are not S.O.P. when equipment is idle. Never had a DEF related problem to date and all but a handful are CTD.
Some updated DEF stats from my 2018 RAM 4500.....
- 142,891.2 miles logged
- 331.841 gallons of DEF purchased
- $928.12 dollars
- 430.602 avg mpg DEF
- 10.33 avg mpg over lifetime of truck
- $0.00649529 per mile in DEF costs
- Or.....easier to understand...$6.49 per 1,000 miles driven in DEF costs
- 100% of DEF has been bulk at the pump
Some updated DEF stats from my 2018 RAM 4500.....
- 142,891.2 miles logged
- 331.841 gallons of DEF purchased
- $928.12 dollars
- 430.602 avg mpg DEF
- 10.33 avg mpg over lifetime of truck
- $0.00649529 per mile in DEF costs
- Or.....easier to understand...$6.49 per 1,000 miles driven in DEF costs
- 100% of DEF has been bulk at the pump
I have been told the new 1K Cummins uses A LOT more DEF. I guess turning up the wick means more cleanup.2.4% DEF to fuel. Right in the 2-3% range I’ve read about. Not too bad at all.
I have not had any down time. I did have an issue once with excessive regens, but a TMAP sensor took care of it.How’s your downtime (not including regular maintenance) been with this rig?
Not to get off topic, but I just have to ask!
A sealed jug that got too hot during transport or storage concerns me more than an open underground tank with a very constant storage temp.
I’m willing to bet that turnover is pretty high at truck stops with pumps. Many OTR trucks use SCR, and I don’t see them using the jugs to fill their much larger tanks.
It would be interesting to see the sales numbers between jug and pump thou.