hemi

[dahlin]

Do any of you have experience with a newer Ram 6.4 2500 truck what kind of MPG did it have enough power to pull your trailer and tractor would you own another how did you like driving it. thanks for your help. Randy

 

[Texasmark1]

I don't have one and nobody answered yet so I'll keep it in front of folks. My last 2 trucks, prior to my current one were Ram ? tons, first with the '05 4.7 and second with the '08 Hemi 8-4, don't remember the cus and torque but between 300 and 400 on the Hemi. The 4.7 was stout no doubt. The Hemi was what it is claimed to be. The 8-4 cut off half the engine when not needed and the transition wasn't noticeable even if you were concentrating on catching it change. Mileage was around 16 for my driving which is country, some highway, some town, some trailer work, some farm diddling around which really eats up the mpgs before you know it.

In comparing 3 modern engines, those two and my current Silverado, (which I bought because I wanted the closest dealer and am not sorry by any means) load is an important factor on fuel economy. Load them up and they burn gas but nothing like yesteryear where single digits were common. For all around mpg, weight and rear end ratio to me would spell your particular mpg. Don't go riding around with a lot if "stuff" in your truck you don't need and take it easy on starts, anticipate hills and such helps on any engine.

Would I take it over a Cummins Diesel? Depends on your vision and longevity. All my tractors are diesels. Everything else is gas! I keep my trucks 10 or so years, tractors forever. Maintenance on my tractors ('63, '65, '07, '16) is right at non existent with normal fluid changes and chassis servicing. Trucks are normal service items only. Don't remember the last time I had to buy a part for a truck. I guess it would be a spontaneous decision at the time of purchase as to which. Could go either way.

 

[Mike M]

I don't have one either ,but local fuel/oil delivery guy does. They get new trucks pretty often. His previous one was IIRC a 5.7 hemi. His said this new one was the best yet. I don't remember what his gas mileage was ? I think it was better then earlier truck.
I had an older 1996 ram 2500 with the 360 and automatic and 3.55 rear end. That thing really pulled well. 13 mpg was all I could get empty.

 

[4wdtom]

I have an 07 2500 with the hemi and 6 sp manual. It pulls my 3500 lbs. tractor and trailer no problem. Has lots of power. I once pulled a trailer and tractor for a buddy, whose truck had broke down, that grossed at a bout 13000lbs. That slowed it down a bit but I managed just fine. I don't have a lot of milage on mine. There have been a couple of minor issues with the truck, but nothing but good running for the engine. I don't know about the 8 4 thing. It was new when I bought my truck and not available on the 2500 and as it was new I didn't want it anyway. Would be interested to hear some feed back on that system.

 

[rustyfarmall]

(quoted from post at 07:03:20 05/24/17) I have an 07 2500 with the hemi and 6 sp manual. It pulls my 3500 lbs. tractor and trailer no problem. Has lots of power. I once pulled a trailer and tractor for a buddy, whose truck had broke down, that grossed at a bout 13000lbs. That slowed it down a bit but I managed just fine. I don't have a lot of milage on mine. There have been a couple of minor issues with the truck, but nothing but good running for the engine. I don't know about the 8 4 thing. It was new when I bought my truck and not available on the 2500 and as it was new I didn't want it anyway. Would be interested to hear some feed back on that system.

Owned a Durango a few years back with the 5.7 Hemi. It was equipped with the 8-4 thing. I could FEEL when it went to the 4 cylinders, and the engine SOUNDED different. Sort of vibrated the whole rig. I didn't like it, and I REALLY didn't like the gas mileage. 14 to maybe 16, with an occasional 18mpg was as good as it ever got.

 

[2002sliverado]

I don't have any experience with a Hemi. My dad has a 5.7 hemi in a half ton. Pretty impressive engine. I did have a standard cab half ton Dodge with a 5.9 V-8, automatic transmission, and a 3.92 to 1 rear end ratio. I pulled a 26.5 foot long travel trailer with that truck and it handled it pretty good. I had to borrow a quad cab half ton Dodge with the same 5.9 V-8, automatic transmission, equipped with probably a 3.55 to 1 rear end ratio. That truck handled that same trailer better, probably because the truck was a bit heavier, more stable, and perhaps the wheelbase might have been a bit longer. The 2002 had plenty of power pulling that trailer, which had an empty weight of around 5800 pounds. I suspect we probably had close to 1000 pounds of added weight with our belongings. I have also pulled a 5000 to 6000 pound tractor on a flatbed trailer behind these trucks as well. This pulled easier on account of much less wind resistance. I don't know how heavy your tractors and your trailer might be. I did look and find the tow rating on a 2500 with a 6.4 Hemi and 4.10 to 1 rear end ratio in the 2014 model year was 15,500 pounds. Cannot answer your question on mileage, though.

 

[dahlin]

Thanks every one. I have had 3 5.7 Hemis this last one is a 2015 and is the best one yet am getting great mileage and is silky smooth on the shift and I really like the truck but we are looking at a bigger 5th wheel camper so we need a bigger truck. fuel MPG concerns me most of my driving will be empty the 5.7 is a beast so power is not a concern. Randy

 

[buickanddeere]

6.2 in Mrs B&D's Max Towing Sierra is faster than a stock Grand National. 6.2 is 10's of thousands cheaper to purchase and service than a diesel.

 

[MN valley man]

I have a 2009 Hemi 5.7 Dodge 1500. It now has 102,000 miles and is a strong puller. Around here just going back and forth to town and running around it averages about 16, but when my wife and I load it with tools and visit her daughter in Georgia, we have averaged as high as 22.8. The multi displacement system works well and gives no clue to the driver when engaging or disengaging.

 

[keith427]

I just purchased a '17 2500 4x4 megacab with the 6.4 Hemi. My commute to work is about 40 miles on the highway. It will get around 15 mpg running 75. In stop and go traffic it will drop to 13 right quick. I only have 3600 miles on it but I really like it. I hope to take a 400 mile highway drive soon and see how the mpg are then.

 

[rustyfarmall]

(quoted from post at 08:57:29 05/24/17) Thanks every one. I have had 3 5.7 Hemis this last one is a 2015 and is the best one yet am getting great mileage and is silky smooth on the shift and I really like the truck but we are looking at a bigger 5th wheel camper so we need a bigger truck. fuel MPG concerns me most of my driving will be empty the 5.7 is a beast so power is not a concern. Randy

The size of the engine has very little to do with fuel mileage. You could have 2 trucks, both with 4.10 rear axle ratios and identical in every other way, except one truck has a 221 cubic inch slant six engine, and the other truck is equipped with a 426 hemi. Both trucks would average 10 to 12 miles per gallon.

 

[rick deere]

I just bought the 2017 dodge 2500 6.4 hemi and on highway no trailor 16mpg but not very good pulling a trailor about 12 and that's not a big load I'm talking about. Think it has 383 gears. Has 3000 miles on it and I got it about 4 months ago. I like it but it cost to drive.

 

[dahlin]

Thanks again to all of you I think I will keep on driving my 2015 Ram I like it and my Mpg runs from 22to 17 running empty and 12-14 pulling my 26.5 camper I would like a little bigger camper but just costs to much to change. Ramdy

 

[LP-Always]

what you wrote here makes no sense at all, what a dumb statement!

 

[Texasmark1]

+1. Not so! All has to do with energy conversion and torque at the rated load. Most engines puke out when maxed out.

 

[buickanddeere]

(quoted from post at 16:01:37 05/24/17)

(quoted from post at 08:57:29 05/24/17) Thanks every one. I have had 3 5.7 Hemis this last one is a 2015 and is the best one yet am getting great mileage and is silky smooth on the shift and I really like the truck but we are looking at a bigger 5th wheel camper so we need a bigger truck. fuel MPG concerns me most of my driving will be empty the 5.7 is a beast so power is not a concern. Randy

The size of the engine has very little to do with fuel mileage. You could have 2 trucks, both with 4.10 rear axle ratios and identical in every other way, except one truck has a 221 cubic inch slant six engine, and the other truck is equipped with a 426 hemi. Both trucks would average 10 to 12 miles per gallon.

Yes , no and maybe .