How would I find out for my state, North Carolina?
Ram Heavy Duty Forum
Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Regeneration Frequency Issue: MAF Poll
- Thread starter mbarber84
- Start date
I feel like if you corner AI, it will tell you whatever you want but it’s now saying 5 / 50k after first saying 8 / 80k (for a 2500).
You’re right—the federal emissions warranty for heavy-duty diesel vehicles (over 8,500 lbs GVWR), like the Ram 2500, covers emissions-related components for 5 years / 50,000 miles, not 8 years / 80,000 miles. The 8/80 rule applies to light-duty vehicles (under 8,500 lbs GVWR), which does not include the Ram 2500.
For your Ram 2500 diesel, the Diesel Particulate Filter (DPF) is covered under the federal emissions warranty for 5 years or 50,000 miles, unless state-specific emissions warranties (like California’s) extend coverage.
If you need to confirm coverage for a specific part, your warranty supplement or a dealership would be the best source.
You’re right—the federal emissions warranty for heavy-duty diesel vehicles (over 8,500 lbs GVWR), like the Ram 2500, covers emissions-related components for 5 years / 50,000 miles, not 8 years / 80,000 miles. The 8/80 rule applies to light-duty vehicles (under 8,500 lbs GVWR), which does not include the Ram 2500.
For your Ram 2500 diesel, the Diesel Particulate Filter (DPF) is covered under the federal emissions warranty for 5 years or 50,000 miles, unless state-specific emissions warranties (like California’s) extend coverage.
If you need to confirm coverage for a specific part, your warranty supplement or a dealership would be the best source.
Appreciate the explanation! I definitely didn't know that. I've only had the "continue driving" message twice in 38k miles. Unfortunately my DPF gauge hits the 45% mark every 75 - 150 miles and regens. It's annoying AF. I'm not getting anywhere close to that 24 drive clock. Hell I regened at 37,570 and then again on the way to the dealer for service today at 37,706 and my DPF gauge is close again at 37,825 and I guarantee it regens again tomorrow morning when I head to work. I'm hoping that since I had them swap out the German made MAF sensor today for the China made MAF sensor I'll start getting 24 hours of drive time between regens. If it doesn't change after tomorrows regen and I get confirmation the DPF is covered under warranty until 50k miles I'm absolutely going to ignore the regen gauge, stop letting the cycle complete and let it fail.
Last edited:
I'm a contractor and a typical drive time/commute is 15-45 minutes. I very rarely take my truck on short drives under 10 minutes. I've always got at least 1,000-1,500lbs in the bed but probably only tow my 10,000lb trailer 4-5 days a month. I change the oil/filter and both fuel filters every 7500 miles (I know the maintenance schedule says every 15k but I figure it's cheap insurance to do it more often especially with the hydraulic roller lifters) . I also use Archoil Diesel Treatment (AR6500) with every fill up and Archoil Diesel Fuel System Cleaner (AR6400-D) every 5,000 miles and have since my truck was brand new. I'm all ears if you or anyone else has any other suggestions.
The problem with frequent regens is not only the potential DPF failure, but excess fuel in oil (fuel dilution) that can lead to engine issues.
(there's another thread here about excessive regen that's more appropriate to discuss)
Automatic Regen too often
I know this has been beat to death but I can’t find a good answer to this other than “drive it harder”. I have a 2022 Ram 2500 with a Cummins (not high output) at roughly 8500 miles I got the regen too often code and my mileage dropped from roughly 17 average to 14, took it to the dealer and...
hdrams.com
To add to this discussion,
Keep in mind that any truck that has had the Y43 recall completed (installation of the Particulate Matter Sensor) gets an extension on the DPF warranty.
This adds an additional year to the warranty covering the DPF, starting from the date of completion of the Y43 recall. It is also an unlimited mileage warranty extension.
Keep in mind that any truck that has had the Y43 recall completed (installation of the Particulate Matter Sensor) gets an extension on the DPF warranty.
This adds an additional year to the warranty covering the DPF, starting from the date of completion of the Y43 recall. It is also an unlimited mileage warranty extension.
I had that Y43 recall completed on 9/25/23 so if my DPF is covered under the Federal Emissions Warranty of 5yr/50k miles I'm covered even without the extension. If it's the 3yr/36k mile warranty I should still be covered because I'm under 3 years and now it's unlimited miles, right?
I'm well within the 5/50 but have driven it 38k in the first 2 years so past the 3/36. My understanding is that the 5/50 covers the DPF. Isn't that right?
Just found it online and printed it. Says DPF is covered under the 5/50. So I guess I'll just let it clog and fail.
Thanks Matt and everyone else! I appreciate it!
CdnHO
Well-Known Member
It is unfortunate that we can't get a serviceable DPF like some of the large trucks. Have not looked under my truck at it; Is the exhaust emission system one piece? Pretty sure that I have the Chinese sensor. Got 610 miles between the last two regens. However about a third of the miles was towing a heavy fifth wheel. Since the last regen the truck has been used around town, a mix of highway and city. It has been 510 miles since the last regen and the DPF gauge is looking ready for another regen. No doubt that towing that fifth wheel over 4 thousand miles each year does the DPF some good.
The DOC and DPF are independent canisters however they are all welded into one “assembly”. They can be cleaned, but that process isn’t as simple as the commercial trucks and equipment systems. In many cases, services are actually cutting the Ram assemblies apart, cleaning, and then re-welding. A serviceable DOC and DPF would be a good thing but “they” don’t seem too interested in supplying such a feature.
Where
where did you get that info. I have a 2020 Ram 2500 4 x 4 and my zDOF won’t regenerate and I need to smog it. Of course it had to happen when my registration is due.
Sorry about the typo DOF is full see dealer. Would like to know if it’s covered m. It does say
DPF