You like to move up to 2500

star_deceiver · Dec 21, 2022

Lifetime, my Cummins got 0.9mpg better than my 6.4. Both trucks were dailys. The Cummins towed better. The Hemi was more fun.
When I traded in the Cummins, we ran some different numbers: If it had the Hemi instead I would have only lost $2000 value vs. the Cummins on a 3 1/2 yr old truck.

jejb · Dec 22, 2022

Fuelly results disagree with you. For the 6.4 for 22, their overall average is 12.1. For the 6.7, it is 15.1. But mileage stuff depends on so many factors, it can be hard to nail down. I know for me, also having owned both diesel and gas 3/4 tons, the diesels get far better mileage towing and empty highway cruising. I've never owned a diesel 3/4 ton that did get 21+ on the interstate at 8-9mph over the limit. I've owned Ford, GM and Ram diesels.

From KBB.com today, the value of an 18 2500 Laramie with the same everything except motor:
Diesel $52,599
6.4 gas $44,500
For a difference of $8099

The window sticker from my 18 2500 Laramie says the Cummins was an $8700 option. Even if you paid MSRP for the 18, which I didn't, that is a pretty darn good return on investment. It is still worth 93% of what it listed for. And that is my experience every time when selling/trading in my diesels over the years.

retired · Dec 22, 2022

I just got home from driving over 400 miles in winter conditions. I witnessed multiple crashes (seems people around Spokane don't know how to drive on slick roads as there were several multiple vehicle involved crashes)and slide-ins. the state police and SO's were very busy in Washington, Idaho and Montana. I kept my gas guzzler in 4wd for much of the trip and averaged 14.2 mpg hand figured at the pump. My lie o meter was almost the same on this trip saying 14.5.

dhay13 · Dec 22, 2022

My son had a 2018 2500 6.4 Hemi 4.10's 4x4 identical to mine. Towing an 8100lb TT on the highway he averaged 8.5 MPG hand calculated. Towing that same TT with his 2021 2500 Cummins with 3.73s 4x4 he got 12.5 as per the EVIC. Adjusting for the EVIC likely hand calculated would have been 11.5 to 12.0. Either way, the Cummins got quite a bit better MPG than the 6.4 Hemi.
Empty his EVIC reads 16.0 in the Cummins so likely 15.0-15.5 hand calculated. The 6.4 averages about 12.0 hand calculated

Zoe Saldana · Dec 22, 2022

dhay13 said:
My son had a 2018 2500 6.4 Hemi 4.10's 4x4 identical to mine. Towing an 8100lb TT on the highway he averaged 8.5 MPG hand calculated. Towing that same TT with his 2021 2500 Cummins with 3.73s 4x4 he got 12.5 as per the EVIC. Adjusting for the EVIC likely hand calculated would have been 11.5 to 12.0. Either way, the Cummins got quite a bit better MPG than the 6.4 Hemi.
Empty his EVIC reads 16.0 in the Cummins so likely 15.0-15.5 hand calculated. The 6.4 averages about 12.0 hand calculated

I once got 29 mpg towing with my 6.4L going west to east in Texas.

I got 7.5mpg towing with my 6.4l going east to west in Texas on the same road I-40.

Wind and temps play a big role in mpg when towing.

Justin Stafford · Dec 22, 2022

2020PW said:
You need to have deep pockets for maintenance on the CTD.

How so ? I own both 5.7L and 6.7L I don't find maintaining both gas nor diesel expensive at all, the intervals between oil on the diesel at longer than hemi so really I don't get it?

dhay13 · Dec 22, 2022

Zoe Saldana said:
I once got 29 mpg towing with my 6.4L going west to east in Texas.

I got 7.5mpg towing with my 6.4l going east to west in Texas on the same road I-40.

Wind and temps play a big role in mpg when towing.

Yeah. He towed that trailer over 9000 miles in 2 years with the 6.4 so pretty good sample size. With the Cummins he only towed it about 200 miles

2020PW · Dec 22, 2022

Justin Stafford said:
How so ? I own both 5.7L and 6.7L I don't find maintaining both gas nor diesel expensive at all, the intervals between oil on the diesel at longer than hemi so really I don't get it?

5.7 is cheap to maintain no where close to a 6.7, you can find that 5.7 oil anywhere. 6.4 runs on unicorn blood.

6.7 oil changes every 15k or 6 months @ $200. Fuel filters once a year at $250. Tires, the weight forces tire wear. CCV replacement at 67k. Then the normal fuel cost and def fluid compared to gas.

Justin Stafford · Dec 22, 2022

I guess I'm lucky enough to be able to take care of all of my own mechanical maintenance on both 1500 an 2500 I guess! keeps our costs low. But yes fuel cost are high,
season greetings friends

Zoe Saldana · Dec 22, 2022

dhay13 said:
Yeah. He towed that trailer over 9000 miles in 2 years with the 6.4 so pretty good sample size. With the Cummins he only towed it about 200 miles

Stop being so nice.

You should have come back with some snarky response.

06 Dodge · Dec 22, 2022

2020PW said:
5.7 is cheap to maintain no where close to a 6.7, you can find that 5.7 oil anywhere. 6.4 runs on unicorn blood.

6.7 oil changes every 15k or 6 months @ $200. Fuel filters once a year at $250. Tires, the weight forces tire wear. CCV replacement at 67k. Then the normal fuel cost and def fluid compared to gas.

FYI the 2019+ 6.7 OCI is 12 months or 15K not every 6 months unless using B20 then its 400 hours or 12500 miles. My OEM fuel filters were $127.50 for the pair, as for tires I have read of many owners of 2019+ getting 50-70K, I've had 1500 that I could not get more then 45-50K.. Also the 6.7 will not get nor have the dreaded Hemi tick we don't have to worry about the cam failing do to bad lifters nor do we have to use fancy oil at $16+ a QT nor do we need to use lubegard to help with Hemi tick...

dhay13 · Dec 22, 2022

Zoe Saldana said:
Stop being so nice.

You should have come back with some snarky response.

Sorry I didn't stir up an argument, just stating the facts...lol

2020PW · Dec 23, 2022

06 Dodge said:
FYI the 2019+ 6.7 OCI is 12 months or 15K not every 6 months unless using B20 then its 400 hours or 12500 miles. My OEM fuel filters were $127.50 for the pair, as for tires I have read of many owners of 2019+ getting 50-70K, I've had 1500 that I could not get more then 45-50K.. Also the 6.7 will not get nor have the dreaded Hemi tick we don't have to worry about the cam failing do to bad lifters nor do we have to use fancy oil at $16+ a QT nor do we need to use lubegard to help with Hemi tick...

The prices are what it cost for dealership maintenance. There’s cheap filters available.

The 2018 and previous also stated 15k or 12 months in the owners manual, the supplement listed otherwise.

Hemi tick or limp mode at 13k miles for def failure that’s not covered under warranty. Turbo issues with the variable vains. Ball joints, always a ball joint.

Max care- Hemi 7 year unlimited mileage warranty, CTD 100k warranty.

FYI I have both a 2018 CTD and 2020 6.4, speaking from experience.

Zoe Saldana · Dec 23, 2022

dhay13 said:
Sorry I didn't stir up an argument, just stating the facts...lol

There you go again!

DA Smith · Dec 23, 2022

jejb said:
Pretty vague. I do very little driving around town with my Cummins, but it shows around 16-17mpg on the lie-o-meter when I do. On the open road, bone stock, I've done as well as 21.5mpg on a sustained 1800 mile interstate jaunt. Running 9mph over the whole way, so 79-84mph. It's routine for it be over 20mpg on the highway. All hand calculated. The lie-o-meter almost always says more than that, but we all know we can't trust that. All of that not towing, of course. Towing also delivers more mpg's than my gas 3/4 tons ever did, by a wide margain.

The 6.4 can't touch those numbers in a like truck in like conditions.

Am I saying to go for the Cummins for mileage? No, I'm not. At best right now, it's a break even deal. Diesel is below $3.80 a gallon around here, but regular is still about 2/3 of that. Claiming the Cummins does not get better mpg than the 6.4 is just incorrect, though.

You can talk your crap all day if you like, I've owned two Cummins so I know the real drill. Also you didn't state your year model and how much delete and programing you have done. As I stated my 05 stock got 20 to 21 empty it was a 4x4. Also all my friends that own the new Cummins like 2018 to 22 tell me their mileage is crap! Even if they are lying its still cheaper to buy and operate a gas truck 10,000 dollars will buy a lot of gas not to mention upkeep and service. No more diesel trucks for me.

2020PW · Dec 23, 2022

Well can’t drive my CTD, fuel gel with these temps.

Dean2 · Dec 23, 2022

2020PW said:
Well can’t drive my CTD, fuel gel with these temps.

Honestly that makes no sense. It gets to -50 here and fuel gel is not an issue. Buy your fuel from a proper truck stop that sells winter diesel. It should come from the refinery properly formulated not to gel. I would be severely pissed off if I had to put up with that nonsense.

jejb · Dec 24, 2022

DA Smith said:
You can talk your crap all day if you like, I've owned two Cummins so I know the real drill. Also you didn't state your year model and how much delete and programing you have done. As I stated my 05 stock got 20 to 21 empty it was a 4x4. Also all my friends that own the new Cummins like 2018 to 22 tell me their mileage is crap! Even if they are lying its still cheaper to buy and operate a gas truck 10,000 dollars will buy a lot of gas not to mention upkeep and service. No more diesel trucks for me.

Talk crap? WTH?

The 2 Cummins Ram's I'm talking about are an 18 Laramie megacab 2500 and a 22 Ltd Longhorn megacab 2500. Both completely stock, both running 3.73's. 20-21mpg at 80-84mph all day long, hand calculated. I'm sure that number goes down with gearing, dually, etc. But my results are not at all uncommon for like trucks of the same year.

And again, the diesel option holds its value far better than the rest of the truck. Look it up on KBB.

jejb · Dec 24, 2022

2020PW said:
Well can’t drive my CTD, fuel gel with these temps.

I owned my first diesel 3/4tons when I still lived in MN. All the stations up there switch to the winter blend in like October. Never had an issue with gelled fuel up there, even when we'd get our yearly cold snap where it never got above 0f for 2 weeks. But southern stations do not do that, and folks are just not aware of the potential issue in these parts.

I keep some Howe's diesel treatment around for our diesel pusher, as it can sit a while between uses. I just pour some of that in the Ram's tank when it gets cold like this.

DA Smith · Dec 24, 2022

jejb said:
Talk crap? WTH?

The 2 Cummins Ram's I'm talking about are an 18 Laramie megacab 2500 and a 22 Ltd Longhorn megacab 2500. Both completely stock, both running 3.73's. 20-21mpg at 80-84mph all day long, hand calculated. I'm sure that number goes down with gearing, dually, etc. But my results are not at all uncommon for like trucks of the same year.

And again, the diesel option holds its value far better than the rest of the truck. Look it up on KBB.

I guess we can agree to disagree , I'll take my 10 to 12-k up front savings with gas over diesel purchase and add all the bells and whistles on the gas truck. Depends on what you want to do, one thing is for sure I've experienced both trucks owning gas and diesel and I personally don't need or want another diesel.

You like to move up to 2500

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