Hello all new to this bought my first ED Ram about 4 week ago. And love it. Its a 17 has 53k on it. My questions are about Tuning. First when I got it the DEF gauge was about half. I filled it day I bought it. Filled and Gauge show full. I have put just under 3k miles and the gauge shows full still? I also noticed all the wires harness hanger pins around the ECM are pull out and just laying there so I know at some point this truck had the ECM out. Is there any way to tell if there is a tune on the Truck? I read about cruise control it engages at 25 mph. It get good mileage on hay with cruise control at posted or 5 over around 26.7 it what I averaged my last 200 mile trip. It does however have a delay when kicking it down. When its cold. When warmed up I dont really notice that. I did also notice it does stay in 8th gear alot even going up a slight grade. So any help would be great. I did purchase from a dealer and last week when I got my free oil change. I told them about the ECM wires hangers all pulled out they told me straight out they didn't even look.
Sorry so long
Sorry so long