V8 swap or move to a JL

[Kuboske]

DEF idling is the enemy they need boost and heat to run. low rpm and low boost doesn’t clean the filter system.

Exactly. Guys with big Cummins Ram trucks that never load them are having trouble. Need to work them.

 

[jeeeep]

DEF idling is the enemy they need boost and heat to run. low rpm and low boost doesn’t clean the filter system.

32% nitrogen solution. Same as what many farmers use on corn for fertilizer.
MUST be kept very clean and must be heated in cold weather or big problems.

so an additional maintenance item?
Is it what keeps the diesel black smoke under control?

 

[JT@623]

so an additional maintenance item?
Is it what keeps the diesel black smoke under control?

Yes if you work a new diesel they will run for a long time 150000 to 200000 with proper maintenance but there will be a point when the DPF filter has to come off and be cleaned or replaced.

 

[Kuboske]

so an additional maintenance item?
Is it what keeps the diesel black smoke under control?

DEF is supposed to reduce nitrogen oxides which is colorless. Soot is unburnt diesel fuel. Diesel engines that smoke black are not running at peak efficiency. At least modern ones. The DPF (Diesel particulate filter) is used to remove trace amounts of soot. As JT stated above, trucks that are worked generate enough heat to keep the DPF cleaner. Regen cycles initiate when needed to burn off any soot buildup in the DPF in order to keep them from restricting exhaust flow. All of this is prone to some failures and even the best eventually need service work.
Even now, the folks at CARB, are proposing additional emissions standards for California based diesel vehicles. They never stop. California is a plague on the rest of the nation.