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Open Roads Forum  >  Tow Vehicles

 > Diesel vs gas......................

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Hannibal

Gas Station

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Posted: 06/17/12 07:19pm Link  |  Quote  |  Print  |  Notify Moderator

Good deal Pool Runner. I'm sure it will tow like a champ and you'll have many years and miles of good trips with it! I too like the hot rod sound of a gas V8. Considering I get 14~ very light city and 17~ hwy at 70 with my 7200 lb Tonka truck, I have no trouble believing 22 with the much lighter and aerodynamic F150 5.0L. Gas engines are getting more and more powerful and efficient. Sounds like you picked a nice one!


'10 F250 XLT CC SB 5.4L 5spdTS 3.73 80k miles
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
'07 KZ Jag 28JFSS.

64thunderbolt

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Posted: 06/19/12 01:57am Link  |  Quote  |  Print  |  Notify Moderator

Pool Runner wrote:

Hannibal wrote:

Good point John. And I've done a comparison between a 2003 SO Cummins Ram and an identical 2005 Hemi powered 2500HD. If I were deaf and didn't have a tachometer, I wouldn't know the difference towing our 10,400 lb Jayco 5th wheel. The Hemi would actually tow it faster up the grades although it was at 5k rpm/70mph. I usually set cruise at 65 in the interstates and 60 on the back roads and let it shift and do it's thing. The Hemi from direct to second and the Cummins from O/D to direct on the uphills. One shifted as much as the other. Never hurt a thing. Cringe factor is not an engine weakness or transmission problem. More of a mental problem.


I previously owned an '05 Dodge QuadCab, 2500, 4x4, Cummins, 3.73 and while I loved the truck and the way it towed anything. But... I can't help but admit how much I actually love the truck/ combo I "downsized" into.

I'm now driving a 2011 Ford F-150, SuperCab, 2wd, 5.0L, 3.55 Yes this is a gasser, and a small one but boy is it stout. My old work truck an '08 GM, 2500HD, 6.0L, 3.73 didn't run or feel as powerful as this new Ford 5.0L. in hind sight I kick myself for not getting the EcoBoost, my reason at the time was that the 3.5L had just come out when I needed a truck last year and dealers were not dealing on them as they were in serious demand. The good news was that all of the 5.0L truck had $12K Off the sticker!! so that was a no brainer.

I also had some warranty work done on my new truck a few months ago (slip-yoke-bump) and Ford gave me a '12 SuperCrew, EcoBoost loaner to drive around. While I know that setup would tow better than my 5.0L, I really could not feel a differenace between the 5.0L & the 3.5L EcoBoost on the road with nothing in the bed or being towed behind.

My 5.0L gets a no joke 22 mpg on the highway empty, cruise set at 68 or 70 and about 15-16 in town. The EcoBooost trucks get about 1 mpg +/- Hwy/ City from what I read. Still 22 mpg's from a normally aspirated V8 is amazing.

Anyway, the wife & I are getting ready to pull the plug on a 20-24' TT with a weight of around 3500-4900 lbs dry, and to be honest I am more than sure my F-150 will be up to the task. I know nobody will belive me, but I swear my '11, 5.0L, F-150 pulls as good as my old '05 Dodge Ram 3/4, Cummins. On top of that the truck is a "Hot-Rod" around town when you are going from light to light or merging onto the highway.


Not trying to start something but the torque is not there. You are living in a fantasy world if you think that small block gasser will tow with that cummins. Hook it to something and go find a 6% pull and come back and let us know how it did. A good running diesel won't feel 4K behind it.


Glen
04 Tail gator XT 34' 5th wheel garage model
99 F350 CC DRW 7.3 ais intake, adrenaline hpop, JW valve body,
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Hannibal

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Posted: 06/19/12 05:08am Link  |  Quote  |  Print  |  Notify Moderator

Don't worry. You don't have enough understanding of torque multiplication through gear reduction to start anything. The Hemi's 365ft/lb through 1.67 second gear puts more torque to the rear axle than the SO Cummins' 460 ft/lbs in direct drive.

ghosst666

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Posted: 06/19/12 06:14pm Link  |  Quote  |  Print  |  Notify Moderator

just wanted to see my post and forum list thanks

64thunderbolt

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Posted: 06/20/12 03:01am Link  |  Quote  |  Print  |  Notify Moderator

Hannibal wrote:

Don't worry. You don't have enough understanding of torque multiplication through gear reduction to start anything. The Hemi's 365ft/lb through 1.67 second gear puts more torque to the rear axle than the SO Cummins' 460 ft/lbs in direct drive.


So, you are comparing your hemi @ 1.67 to the cummins @ 1 to 1??

Thats a good comparison.

Hannibal

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Posted: 06/20/12 05:03am Link  |  Quote  |  Print  |  Notify Moderator

Absolutely! The Hemi runs 4200rpm 60mph in 2nd gear multiplying torque X 1.67 up the grades. The Cummins with all it's torque is rpm limited to 3k~rpm. That's too bad.

seattlefirervr

Snohomish, WA

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Posted: 06/20/12 11:04pm Link  |  Quote  |  Print  |  Notify Moderator

If you are in WA State, the Diesel prices, within the past few weeks, are finally below low grade gas. When vs. price per gallon isn't astronomical...diesel wins EVERY TIME!


2006 31' Wildcat QBH,Yamaha 3000EFi Generator

2000 Ford F250 Lariat PSD CC,SB,4WD,AT. aFe Megacannon Airfilter,4" Diamond I exhaust,Custom"Evergreen Diesel"chip,Autometer pillar gauges,BD Torque Converter,ATS Turbo Housing,Wicked Wheel,BD Exhaust Brake,

Rota

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Posted: 06/21/12 08:30pm Link  |  Quote  |  Print  |  Notify Moderator

Now a hemi will tow better than the cummins.
Not on a cold day in h@!1 I don't care how you dress it up.

In a few years a hemi 1500 will be out towing a 3500.

Your going to try to tell me a hemi will get that load rolling easier and quicker?



A lot of miss info on this site.

Hannibal

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Posted: 06/22/12 04:58am Link  |  Quote  |  Print  |  Notify Moderator

My 2005 Hemi powered 2500HD would out tow my 2003 SO Cummins powered duplicate 2500HD towing the same 10,400 lb 5th wheel around the southeast including Monteagle Pass. 345hp is going to out tow 250 hp any day of the week. My 95 160hp Cummins Ram was a slug. All that grunt and no power. The 300cid I6 F150 I had before it towed our 4400 lb TT better. So you might want to put your sweater on.

The Mad Norsky

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Posted: 06/22/12 04:45pm Link  |  Quote  |  Print  |  Notify Moderator

Don't own a Hemi in any truck, but in car form (Chrysler 300C) I can surely attest to the amount of power the engine has.

And boy do I agree that those mid-90's low horsepower Cummins were slugs. Of course, I had the 3:55 axle ratio in that truck, and that did not help either. On the flip side, it really got good MPG's, averaging over 20 MPG for the time I owned it.

My main concern in this diesel vs gas debate was my fuel mileage while pulling, and that is the main reason I went with and continue with diesel. To be fair of course, I do not know what some are getting with this newer generation of gas motors, so the once vaunted diesel advantage may no longer exist.

All in all, it may just come down to the individual operator, and what they are used to and comfortable operating.


The Mad Norsky, Doll, Logan and Rocky
2014 Ram 3500 w/ Cummins/Aisin
2003 Hitchhiker Discover America Quad Slide
2008 SnowRiver 10-8 D/S Torklift, FastGuns, StableLoads
RV'ing since 1991

I took the road less traveled .....Now I'm Lost!

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