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 > Help Ram 2500 6.4 gas vs diesel

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Grit dog

Black Diamond, WA

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Posted: 05/03/21 08:39am Link  |  Quote  |  Print  |  Notify Moderator

Second Chance wrote:

Skip the 3/4-ton trucks if you're going diesel. The diesel drivetrain, though a joy to tow with, is heavy and really eats into the payload of a 3/4-ton truck.

Rob

Only if you don't understand the realities of payload/gvwr, especially with 3/4 tons.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

JKJavelin

Milwaukee, WI

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Posted: 05/03/21 09:33am Link  |  Quote  |  Print  |  Notify Moderator

When we bought our 5th wheel, I had a brand new 2016 Ram 2500 6.4.
Less than 2 years later I bought a new 2018 Ram 3500 Cummins.
Guess why?


2018 Ram 3500 Laramie Cummins 6.7
2016 Open Range RF316RLS
Titan Disc Brakes
Trailair pinbox
Morryde SRE-4000 w/ wetbolt kit
Demco Hijacker Autoslide 18k
570 watts of Solar

2017- 21 Nights
2018- 75 Nights
2019- 138 Nights
2020- 72 Nights
2021- 65 Nights

BurbMan

Noblesville, IN

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Posted: 05/03/21 09:50am Link  |  Quote  |  Print  |  Notify Moderator

A TT only has 10-15% of it's weight on the tongue, a 5er has 20-25% of its weight on the pin, so the same payload on the truck gets you a bigger TT than 5er.

You've got too many plates spinning here....first figure out what size trailer you want and whether TT or 5er, then figure out if you need to upgrade the truck.

You said the truck did fine with the TT you rented, if you buy one that's similar there's no need to upgrade the truck. If you decide that you like a 5er better, then decide which one you want to buy and from there you can decide SRW/DRW and gas/diesel based on the specs of the trailer.


2015 Ram 3500 SRW 4x4 Laramie Crew Cab Long Box, Cummins diesel
2002 Lance 811 Slide-In Camper
SOLD: 2008 Terry 34' TT
SOLD: 2001 K2500LT 8.1L Suburban

Lance 811 Renovation Story!
Project Complete!
Maiden Voyage!


Second Chance

Wherever...

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Posted: 05/03/21 09:56am Link  |  Quote  |  Print  |  Notify Moderator

BurbMan wrote:

A TT only has 10-15% of it's weight on the tongue, a 5er has 20-25% of its weight on the pin, so the same payload on the truck gets you a bigger TT than 5er.

You've got too many plates spinning here....first figure out what size trailer you want and whether TT or 5er, then figure out if you need to upgrade the truck.

You said the truck did fine with the TT you rented, if you buy one that's similar there's no need to upgrade the truck. If you decide that you like a 5er better, then decide which one you want to buy and from there you can decide SRW/DRW and gas/diesel based on the specs of the trailer.


This^^. I wish I had stated it that clearly.

Rob


U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015


goducks10

There

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Posted: 05/03/21 10:09am Link  |  Quote  |  Print  |  Notify Moderator

I towed a 9200 lb 5er with a 2018 Ram 2500 6.4, 4.10 gears and it was only adequate. I sold the 5er and got a 9600 lb loaded TT. Same type of towing experience naturally. The killer was a month long trip through 7 western states with one pass at 8432' and a 10% grade. That trip was a PITA. Mostly because I was in higher elevations where you lose 3% of power for every 1000' of altitude. The Hemi need to of course wind out to pull the load. Problem was that even with locking out 6th that every slight incline the 6sp would drop to 4th and then sometimes 3rd. I suppose the 8sp would calm things down but not with 12,000 lbs behind it.
MPG's were 8's-9's. 9's being rare. The 6sp is terrible. Down in the lower gears the spacing is wrong and it will drop to a lower gear and scream then up shift and bog. Rinse repeat.
After that year of which we put over 5,000 miles of towing on the 2500 6.4 I said never again. The in 2020 Covid hit and we didn't do much traveling so the Hemi was fine. Come Sept 2020 a dealer in town had a 2019 3500 CTD leftover so with the stupid high prices for used truck and the good discount on the 19 I made the switch back to a diesel.
I have 4558 lbs of CCC and it tows our TT like a dream. I also get in the 11's for MPG.
I would never want to tow over 7-8,000 lbs with the 6sp Hemi. If I only towed out in the flat parts where you have some rolling hills on occasion then you'd be okay towing heavier. But the 1st 5%-6% grade you hit and the Hemi 6sp drops from 5th to 3rd and maybe 2nd you'd see why I switched.

FWIW on the 8432' 10% grade that seemed like it lasted for eternity I was in 1st gear at 20 mpg or so and wound out to 42-4500 rpms. Only thing I could think of was I was glad I still had a warranty.

Grit dog

Black Diamond, WA

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Posted: 05/03/21 10:11am Link  |  Quote  |  Print  |  Notify Moderator

5ver or TT doesn’t really matter in how well the truck handles the load from a power standpoint. Frontal area, weight and driving conditions are far more important.
And IMO driving conditions is what I’d rate highest concern for gas vs diesel.
Mountains, altitude, nasty head winds common? I wouldn’t want to pull with your current truck. Truck will handle it, but not at the speed of level of effort out of the truck that I’d prefer.
Mostly flat-ish, low altitude, not out in the plains where the wind blows sideways for hours on end? I wouldn’t hesitate to just rock the old Hemi, especially if I already owned it.

noteven

Turtle Island

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Posted: 05/03/21 12:47pm Link  |  Quote  |  Print  |  Notify Moderator

Why do we "hooray" more tran mission speeds in pickup trucks then complain when the truck shifts gears when we are towing?

Jastrong

USA

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Posted: 05/03/21 01:01pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks guys for all the information, certainly a lot to think about. Still processing a lot of it.

valhalla360

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Posted: 05/03/21 02:17pm Link  |  Quote  |  Print  |  Notify Moderator

packpe89 wrote:

It is also much easier to fuel up on the trip with the diesel, utilizing truck stops instead of mingling with cars at the gas pumps.


I've had both gas and diesel and found the opposite.

Of course, we typically top out around 250miles in a day, so we fill up before hooking up.

I can stop at any gas station and use any pump with the current gas truck.

With the diesel, I had to wait in line for one of the single diesel pumps at smaller stations or go stand in a puddle of diesel at a truck stop before carefully working the high speed nozzle, so it wouldn't spit up on me adding to the puddle.

On the rare occasions when we do fill up with trailer in tow, it's usually at the big stations right off of an exit, so no big deal mixing with cars.


Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV


Grit dog

Black Diamond, WA

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Posted: 05/03/21 04:59pm Link  |  Quote  |  Print  |  Notify Moderator

noteven wrote:

Why do we "hooray" more tran mission speeds in pickup trucks then complain when the truck shifts gears when we are towing?


Are you 4x4ord's alter ego?

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