Back by popular request, here is another “regen report” from Rod that documents his experience with a 2019 Ram HD 2500 Cummins turbo-diesel and the exhaust system regeneration. Rod initially sent us his regen report for his newer 2020 Ford F-250 Power Stroke diesel truck a few days ago. It generated a lot of discussions, and Rod offered to send his MPG and regen data to us for his previous truck, which is this Ram heavy-duty.
Just to summarize, the new 2020 Ford 6.7-liter turbo-diesel V8 in the F-250 would go into the exhaust regen mode once every 497.5 miles, and each regen lasted for about 16.25 miles. Rod drives his trucks in a mixed city and highway environment and puts a lot of miles on his trucks as well.
The 2020 F-250 uses Ford’s latest generation of the 6.7L V8 diesel engine and a new 10-speed automatic transmission. The V8 is rated at 475 hp and 1,050 lb-ft of torque.
A little more background:
Before we get to the report, here is a little background about what the regen cycle is. If you own a modern turbo-diesel pickup truck, it is very likely to have a Diesel Particulate Filter (DPF). This filter is a part of the exhaust system and it is designed to catch some of the unburned particulates in the exhaust stream. This filter accumulates these particulates over time and thus it must be cleaned to provide better exhaust flow and performance. The regeneration cycle takes care of this by injecting additional diesel fuel, heating up the exhaust system and the DPF to 1,000 F degrees or more, and burning the particulates out of the filter.
The 2019 Ram HD 2500 truck in question here uses a standard output 6.7-liter Cummins I6 turbo-diesel and Ram’s 6-speed 68RFE automatic transmission. This version of the Cummins is rated at 370 hp and 850 lb-ft of torque. This is not the high-output version of the engine that is available in the Ram 3500 trucks.
The Ram HD 2500 report below shows the truck drive 14,475 miles while Rod was monitoring the exhaust regen cycles. The truck went through 14 regen cycles over that period for a 245 total miles driven while in regen.
Basically, the Ram HD 2500 truck ran a regen cycle once every 1,033 miles on average. Every regen cycle lasted about 17.5 miles. This Ram went about twice the distance of the Ford between regen cycles.