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SHORT TRIPPING WITH NEW 2025 6.7 EMISSIONS SYSTEM

LtLib1415 said:
I just bought a 2025 Ram 3500 Limited and it’s already regened and I have an annoying tape g sound coming from the DPF pump under the passenger seat area. Terrible fuel mileage during the cycle as well.
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Supposex to say tapping.
 
LtLib1415 said:
Supposex to say tapping.
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Well, I mean, considering how a regen works I’d expect terrible fuel mileage at that time. My 24 has managed 20+ mpg on long unloaded trips at highway speeds. During a regen I’ve managed 12mpg, at times, dependent upon driving conditions. I don’t think that’s something worth being dissatisfied about. It’s the nature of the beast.
 
LtLib1415 said:
I just bought a 2025 Ram 3500 Limited and it’s already regened and I have an annoying tape g sound coming from the DPF pump under the passenger seat area. Terrible fuel mileage during the cycle as well.
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Regened after how long/far?
 
There seems to be a lot of conversation on if you should even get a HD truck for your son, but I'm gonna skip past that and address the question on short tripping. OP, I can quickly sum it up as follows.
I know that the average consesus is not excessive short tripping with the 6.7.
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Correct.
But I am not sure that is a real issue like may say.
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Then why ask for feedback?
I also am wondering if the new Emissions system will allow this without any issues. I am thinking yes?
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History has shown no, but only time will tell.

Longer answer is that modern diesels with emissions systems require heat to function. A hotter system means that the DPF is doing more passive regeneration, which means less regen cycle and thus less general wear and tear on the system (a heat cycle is bad for everything). So the longer you can get up to temp and keep up to temp the better. Two things kill modern diesel engines, excessive idling (ie. >30% max idle engine hours) and "grocery getting".

If you are doing less than 30 min drive cycles constantly, you will start to have emissions issues. I mean you will eventually have emissions system issues no matter what. A cooler will soot load. The DPF is a literal filter, and no filters last forever. The intake will cake up the grid heater, especially cold Canadian temps in the winter.

If you're dead set on a diesel truck (and even if you're not gonna be doing "truck stuff" right away I get the appear) I'd say either know that you will eventually have expensive emission system issues, so plan for fixing or deleting. For example my 2014 Dually is currently experiencing intermittent issues with a NOx sensor right at the turbo housing. That part is required for the emissions system, and costs about $1800.

So in short, yes excessive short tripping is bad for a diesel, you can mitigate it some, but end of the day you're fighting a losing battle. Pay for a delete, or pay to repair, it's your call.
 
Brutal_HO said:
What pump?

Are you guys mixing up DEF injection with DPF injection?
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The only pump I know of is the DEF pump. The 2018 and 2022 I referred to doesn't have DPF pumps. Nothing to mix up here.
 
Yea, that was kinda my point. First guy says DPF under the passenger seat; DEF is in tank on the driver side.

Second guys says, yea my pump is noisy too.

Bad game of telephone. No wonder AI search results are always whack.
 
HarryN said:
Here is my logic. If you you are on long trip, you want the kids to be able to sleep in the back seat, same as if you have older children.

Sleeping is a lot easier if the back seat can lean back, and that just is not possible in a normal crew cab truck. Any vehicle that makes you sit full upright is just long term uncomfortable to be back there.

So that pushes the decision to the 10 inch longer megacab.

Now put 4 full size adults in the megacab or 2 parents / 2 kids and all of the stuff that families carry along when they go anywhere - it isn't a small amount, it is easy to hit 1 000 lbs in the cab.

Add a topper to the back, some camping trip supplies, maybe some accessories for power when on the road - now there is 1 000 - 1 500 lbs in the bed.

Decide to pull along a 5K lb trailer or boat, which is not really that heavy, and well within the "rated tow capability" of both 1500s and 2500s.

Go add it up and run the numbers for:
- The weight on the front axle
- The weight on the back axle
- All of the tow related numbers and payload numbers

A 2500 will struggle to stay within the listed ratings if you go straight by the official ratings.

Obviously a 1500 is better than one of those baby SUVs, but those do provide a way to lean back, and I consider that to be a key feature in any vehicle.

Is the maintenance cost on a 2025 2500 really that much more than a 1500 run with those same loads ? One is working really hard, the other is just loping. Especially a tough environment like Canada can be ? Maybe, maybe not. Flat land areas, perhaps it doesn't matter, but western Canada has real mountains.

Climbing real mountains with a real load, and wanting to be able to not overheat but keep up with traffic - 1500 just is not going to do it.
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I've had a 5th gen 1500, 2500 CC, and a 3500 MC. I'll say now, given the way Ram has their models setup, I'm not a fan of the 2500. That 10k GVWR (now 10.1, I think) is just a killer, especially with the MC, and there's very few reasons not to jump to the 3500. The 2 HD models don't cost significantly different and have all the same options for the most part. I'll stipulate that I'm a fan of the air suspension and haven't had the steal options in any of my ram trucks, which could be big difference in ride quality, but even then I'd prefer to have the capability of the 3500.

So you know, the 1500 crewcab has more rear passenger space than a mega cab and it also has reclining rear seats, plus rear seats can be optioned to be cooled, which is nice when the kids are big enough that they're not on boosters. MC has space behind the seats, which the 1500 does not.

The 1500 is a much cheaper and more family friendly vehicle than an HD, even a mega cab. 1500 has a better turning radius, smoother ride, more space... I LOVE my 3500 MC, but if we weren't towing, I'd switch back to a 1500 gasser and never look back. heck, there are plenty of half-ton campers out there; we did that for a few years and it worked really well.

When we decided to upgrade our camper we jumped to a 2500, but hit the ceiling with that pretty quick. 2500 will have about +800-1,500 lbs of payload over a half-ton, when optioned with the diesel, and you'll run into the payload limits when you start towing or hauling with a family in the truck. 800-1200 pounds of people, dogs, all their stuff, AND towing a trailer... it adds up quick

consider too that an oil and fuel filter change on a diesel can cost $700 US or more at a dealership... I mean, everything is more expensive for the HDs. And while I used to do maintenance myself, with kids, and work, and extracurriculars, I'm always looking for opportunities to reclaim my time. I expect most parents feel that way, but not all of us have the cash to buy our time back.

I think it really comes down to money and towing... if cost isn't a concern and they might want to tow, just go straight to the 3500 diesel. If they've got no interest in towing or won't be towing heavy or often, a 1500 would be far easier to live with. Obviously you should ask your son what he wants.

I'm trying to think what a 2500 is good for, in my opinion of course... probably as a work truck and probably best as a gasser. If there's just 1 or 2 guys in the cab, there's some payload for tools, equipment, a trailer for getting around town. 2500 makes a killer HD overland truck too, but that's niche.
 
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RockaRhyme said:
I've had a 5th gen 1500, 2500 CC, and a 3500 MC. I'll say now, given the way Ram has their models setup, I'm not a fan of the 2500. That 10k GVWR (now 10.1, I think) is just a killer, especially with the MC, and there's very few reasons not to jump to the 3500. The 2 HD models don't cost significantly different and have all the same options for the most part. I'll stipulate that I'm a fan of the air suspension and haven't had the steal options in any of my ram trucks, which could be big difference in ride quality, but even then I'd prefer to have the capability of the 3500.

So you know, the 1500 crewcab has more rear passenger space than a mega cab and it also has reclining rear seats, plus rear seats can be optioned to be cooled, which is nice when the kids are big enough that they're not on boosters. MC has space behind the seats, which the 1500 does not.

The 1500 is a much cheaper and more family friendly vehicle than an HD, even a mega cab. 1500 has a better turning radius, smoother ride, more space... I LOVE my 3500 MC, but if we weren't towing, I'd switch back to a 1500 gasser and never look back. heck, there are plenty of half-ton campers out there; we did that for a few years and it worked really well.

When we decided to upgrade our camper we jumped to a 2500, but hit the ceiling with that pretty quick. 2500 will have about +800-1,500 lbs of payload over a half-ton, when optioned with the diesel, and you'll run into the payload limits when you start towing or hauling with a family in the truck. 800-1200 pounds of people, dogs, all their stuff, AND towing a trailer... it adds up quick

consider too that an oil and fuel filter change on a diesel can cost $700 US or more at a dealership... I mean, everything is more expensive for the HDs. And while I used to do maintenance myself, with kids, and work, and extracurriculars, I'm always looking for opportunities to reclaim my time. I expect most parents feel that way, but not all of us have the cash to buy our time back.

I think it really comes down to money and towing... if cost isn't a concern and they might want to tow, just go straight to the 3500 diesel. If they've got no interest in towing or won't be towing heavy or often, a 1500 would be far easier to live with. Obviously you should ask your son what he wants.

I'm trying to think what a 2500 is good for, in my opinion of course... probably as a work truck and probably best as a gasser. If there's just 1 or 2 guys in the cab, there's some payload for tools, equipment, a trailer for getting around town. 2500 makes a killer HD overland truck too, but that's niche.
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You keep referencing payload as if its a legal limit when its not its for registration reasons the 2500 has 12040LBS axle weight rating thats what the weigh stations and police go by for weight restrictions not the “payload” sticker on the door
 
H3LZSN1P3R said:
You keep referencing payload as if its a legal limit when its not its for registration reasons the 2500 has 12040LBS axle weight rating thats what the weigh stations and police go by for weight restrictions not the “payload” sticker on the door
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Maybe it’s more legal on a 5th gen HD :cool:
 
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