Just got the parked regen light do I need to pull over and do it right away?

If it’s asking for a parked regen, it will most likely derate.

 

What happens when you run out of def. With and without needing a regen? Asking for a friend.

 

Sure you can, it should show you on the drivers side visor how to do a parked regen.

 

Just put more in.

It depends. Some derate to 55. Some have a timer for it others count miles till a derate. I drove pos Volvo. It would give you a 100 miles. Take over an hour to do a parked Regen.

 

On freightliner, I can only do a parked regen when it says it needs one; but, I’ve sat in the drivers seat doing a high idle for 30-50min (pressing on the accelerator), gotten the hot exhaust light, and the soot level gauge went from OK to Good. My current truck has required regens more than any past one and often at inopportune times (even had the parked regen light come on while driving), so I got tired of waiting for the light to come on and will occasionally just do it myself preemptively.

 

not sure about the international trucks but freightliner no longer has regen switch, you have to go through menu and click on Ok for Regen