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From the article:


. . . the four-wheel-drive Ram 1500 EcoDiesel with a towing-preferred 3.92:1 axle ratio achieved 19/26/21 mpg city/highway/combined. According to EPA figures, the Ram 1500 4x4 with the Pentastar 3.6-liter V-6 hits 16/23/19 mpg, whereas equipping the 5.7-liter Hemi V-8 nets 13/19/15 mpg (six-speed automatic) or 15/21/17 mpg (eight-speed auto).

Then we put a rear-drive Ram 1500 EcoDiesel with the longer 3.55:1 ratio on the Real MPG loop. It finished the cycle at 18/28/22 mpg. Once again, according to the EPA, the rear-drive Ram 1500 with the Pentastar V-6 is rated 17/25/20 mpg. Having the burlier Hemi onboard drops fuel economy to 15/22/17 mpg with the eight-speed auto and to 14/20/16 mpg with the six-speed.

2014 Ram 1500 EcoDiesel Gets 28 MPG Highway in Real MPG Testing - Motor Trend WOT
 

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First tank of fuel thru my 1500 with pentastar v6. Almost all highway. 28 mpg and not even broken in yet. Awesome truck.
 

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Im still wondering if the Pentastar will work for me... I did drive a GC with the 3.6 and liked it but I need to tow 5-6k lbs. sometimes. That's great mileage! My '91 Toyota PU only gets 27ish!
 

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I'm beginning to wonder if the pentastar will work for me also now. But I think that the max tow rating is 6k which is probably a base model. Wonder what a 4door with midrange options is good for.
 

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I wonder if I can get the 3.92 in the 4X4 Outdoorsman. It won't let me price it out on the 4X4 but on the 2WD, it will. Weird.
 

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Im still wondering if the Pentastar will work for me... I did drive a GC with the 3.6 and liked it but I need to tow 5-6k lbs. sometimes. That's great mileage! My '91 Toyota PU only gets 27ish!
I believe my quad cab with pentastar is rated for 6200lbs and payload is around 1800lbs in 4x4 trim. The numbers r lower for 2013 models. Apparently the ratings have a lot to do with the park gear. They beefed it up in 2014 models which has increased the tow rating. The info is online to reference. That is one of the reasons some dealers can't move the 2013s.
 

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If the hemi is achieving 22 miles per gallon, and the Ecodiesel is achieving 28 miles per gallon, not sure about other states, but on Monday near my home, Gas was 3.25 and Diesel was 3.79 per gallon. For 12,000 miles driven per year, "BASED ON THE HIGHWAY MILEAGE FIGURES OF 22 AND 28",
12,000 miles in 1 year
For the Hemi that equals a total of $1772.72 for the year / 12,000 miles
For the Ecodiesel the total is $1624.28
The difference between the Hemi and the Ecodiesel is $148 dollars and change for the entire year or 12,000 miles.

So the idea of fuel economy in the Ecodiesel is appealing, and this comparison was based on highway miles per gallon figures/ estimates and NOT city or combined, the point is with the differential in cost of gasoline vs diesel, at least here in Pennsylvania, where on Monday at the fuel station Pennz oil in Mars, Pa, the gas was $3.25 and diesel was $3.79, the savings is less than I would have expected. And if you include the $2800 premium for the diesel vs the gas, there is almost no economic benefit.
I like diesels, had a duramax and a cummins, and I like how a diesel performs. While the cost savings may not be great, I will probably buy one, or if the costs are in the over $50,000 range, I may just buy a used 2011/2012 Duramax again. Diesels Rock.
 

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I've been doing numbers also and it just depends on the situation but my concern comes to towing also where I know the diesel will be much better and I'll be looking at 20 or more mpg vs 13 or less. That will pay off huge or even when hauling. But I'm exactly with you marsman, if I cant get a good enough deal on an Ecodiesel than I'll be looking for a 3/4ton diesel and not have to worry if I have enough truck.
 

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LCR we had the 2 3/4 ton trucks. We never got the big camper so we sold the duramax. I got the cummins as recommendation from nephew it was a 2006. 5.9. Great motor. But rough riding and a hard pullin work truck. The duramax was smooth and still capable. The whole family liked it and used it. This is not a debate about which is better. Both are good. My nephew has my 2006 cummins and hopped it up even more than I did. If I can not get a deal on an ecodiesel I will prob get a used duramax. If the ram is 51000-55000 and I can get a used duramax for 42000-44000 that to me is a better value. Will see what the prices are like.
 

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Do you guys know if I could get the V-6 gasser Laramie with the eight speed auto and air suspension? I too like diesels, but here in Hawaii, it will be awhile before we see an Ecidiesel.
 

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You cant get the 3.6 Pentastar in a Laramie. Only the 5.7 Hemi or 3.0 Diesel. You can get the 3.6 in a Big Horn(SLT) with an 8 speed and air suspension.
 
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