What's better? 6.4L or the Cummins Diesel

[jljbtm]

What's better? 6.4L or the Cummins Diesel in a 2500

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[Zoe Saldana]

For What? What is the job?

 

[corneileous]

For What? What is the job?

This[emoji3516][emoji3516][emoji3516][emoji3516][emoji3516].

What's better? 6.4L or the Cummins Diesel in a 2500

Too many other questions need to be answered before that one can.


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[Sandevino]

This is an impossible question to answer without a use case, but here’s my $.02 from many perspectives...

COST PERSPECTIVE
Upfront cost - 6.4L > Cummins
- Cummins is a $9K minimum option

Resale value - PUSH
- Cummins is more expensive up front so resale is higher

Routine maintenance cost (oil changes) - 6.4L > Cummins
- Cummins takes 12 quarts and the 6.4L takes 7 quarts
- Cummins requires fuel filter changes at 12k miles
- Cummins requires water separator filter changes

Unplanned maintenance - 6.4L > Cummins
- Cummins often has issues with the EGR, DPF and CP4 fuel pump which are not covered outside the power train warranty

Fuel cost - 6.4L > Cummins
- Due to higher taxes, diesel is not always, but usually more expensive than gasoline.
- Diesel requires DEF at an additional per gallon cost

PAYLOAD AND TOWING
Payload - 6.4L > Cummins
- 2500’s have 10000# GVWR - 6.4L weighs less and has higher payload
- 3500’s have 12 - 14000# GVWR - 6.4L weighs less and has higher payload

Towing - Cummins > 6.4L
- Payload (pin / tongue weight) dictates towing capacity
- Cummins has higher torque and can pull more - legality aside

OFF-ROAD CAPABILITY
- 6.4L > Cummins - less weight is better off-road
- Power Wagon has the 6.4L

DUDE APPROVAL
- Cummins > 6.4L

Determine your use case....

 

[retired]

depends on what oil you want to run.....or what flavor of ice cream you like....

 

[jljbtm]

Ok, i simply want more muscle/stability than my 1500 to pull either a travel trailer or 5th.wheel. I didn't want to start any arguments so I rephrased the question and simply asked what do you like better about the 6-4 if you own one or the Cummins diesel if you own that one. Thx Jack

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[Sandevino]

I have a 2020 2500 with the 6.4L and love it. It pulls anything I put behind it without issue.

 

[corneileous]

Ok, i simply want more muscle/stability than my 1500 to pull either a travel trailer or 5th.wheel. I didn't want to start any arguments so I rephrased the question and simply asked what do you like better about the 6-4 if you own one or the Cummins diesel if you own that one. Thx Jack

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Still too many variables and subjection bein’ that either motor will certainly do what you intend to do with it but it all just pretty much boils down to how much you wanna spend, how much added maintenance and cost, you want to deal with and how often you’ll be towing; and if all that greatness of the CTD is worth the much better performance and mileage compared to how much gas the 392 will gulp.


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[Zoe Saldana]

This[emoji3516][emoji3516][emoji3516][emoji3516][emoji3516].


Too many other questions need to be answered before that one can.


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What?

 

[corneileous]

What?

What? Did you not notice that the last part of what I said was addressed to the OP?


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[danoday]

Three options, all with different utility preferences. Assuming the 2500 4x4 will be a daily driver for primary use. Diesel, 6.4 and 6.4 power wagon. Heavy tow anything or heavy tow or serious off roading (minimum tow), respectively.

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[392DevilDog]

392 Hemi

 

[MADDOG]

I've had both engines in a 2500. The Cummins powered truck will have a higher dry weight and therefore will suffer a bit of a penalty in available payload due to the heavier diesel enging.

Conversely, while the 6.4L powered trucks will have a bit more payload available than the Cummins powered truck, not having the torque a Cummins can provide puts them at a small disadvantage.

Either way, you have to be careful when picking your RV being very mindful of the weights you will be dealing with.

 

[HEMIMANN]

Better for who? If you, then you have to tell us about you - what you do or want to do.


I owned the original Cummins 6BT5.9 powered truck, a 1500 with 5.7 Hemi Truck, and now a 2500 with 6.4 Hemi truck.

Feel free to ask why or PM.

 

[Sandevino]

Better for who? If you, then you have to tell us about you - what you do or want to do.


I owned the original Cummins 6BT5.9 powered truck, a 1500 with 5.7 Hemi Truck, and now a 2500 with 6.4 Hemi truck.

Feel free to ask why or PM.

Why....?

 

[HEMIMANN]

Why....?

Because

(we aren't helping OP much, tho)

 

[retired]

I am pretty happy with my 6.4L gets great mpg for a big truck running 35's. I had heard all the stories of how terrible the mpg was going to be but that has not been the case.

 

[Sandevino]

Because

(we aren't helping OP much, tho)

Well, he’s been a bit coy about his requirements.

 

[mtnrider]

I've had both and will never ever own a gas engine in a HD truck again, period. But all the gas guy's on here will feel differently so the argument continues


.

 

[dhay13]

Really depends on what you want to do with it. If you want a 5th wheel then I would avoid the 2500 Cummins. Not enough payload and highly likely you will be overloaded and illegal. If it is a smaller 5th wheel then the 2500 6.4 would be fine (by smaller I'm saying less than about 11,000lbs loaded). If a smaller bumper pull (less than 9000lbs loaded then either will be fine. Over that and now you are starting to get close to the payload limits on the Cummins again. 6.4 would again still be good to maybe 11,000 loaded.

2500 Cummins only has about 2100lbs of payload. Sure towing is up around 18,000 or whatever but you cannot get close to that before running out of payload. The 6.4 2500 will have closer to 3000lbs payload.

So really depends on what you want to do with it. Anything over 11,000 I would go with a 3500 Cummins. If you only plan to tow 2 or 3 times a year for shorter distances then you can go higher with the 6.4. My 2018 with 4.10's has a towing capacity of about 15,600lbs. Never towed that much and wouldn't want to try it but if it was only a couple of times a year then you could probably push 13,000-14,000 loaded and be fine with the 6.4 and 4.10's