Been a long time since I have posted here but it is getting close to time to start truck shopping. My 02 Silverado with the 6.0 gasser is getting tired. I have my eye on the Dodge 6.4 hemi in the 3/4 ton 4wd. Can someone please share your real world fuel mileage experience with this setup? Not expecting out of this world performance but would like to know what I can expect since it will be a daily driver for me. Can't afford a diesel so it will have to be a gasser for me. Thanks in advance for the help.

Here is a thread I started about my towing experience. My 2016 Ram 2500 has a 6.4 hemi and 4.10 rear axle. It is a long read and has some detail, but since you are considering buying. It has detail mileage towing my fiver. Hope this helps. CLICK HERE TO READ ABOUT 6.4 HEMI TOWING

Around town, stop and go traffic, I'm between 10-12 mpg average. On the highway I've been up to 19+ mpg average. Pretty good imo, for a truck of this size and weight. I have the 3.73 gears

My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.

GordonThree wrote:My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.In my experience, getting 11 mpg on any gas vehicle towing a TT is great, not terrible. Your 3,500 lb TT has about the same frontal area drag as a 8,000 lb TT. A diesel will certainly get better, but 11 is great towing a TT. Towing my 12K fiver I consider 8 mpg good for a gas vehicle. My 2015 Ram diesel only got 11 mpg towing the same fiver. There is a lot of aerodynamic drag that must be overcome towing anything that looks like a box.

My 2014 6.4, CC, 4x4 and 6'4" box gets 8-9 towing my 9500 lb (loaded) trailer. It will drop lower when pulling mountains but from TX to FL I'll average the above. Unloaded it will get about 14 in town (we live in a smaller town) and I've seen 20 mpg on the highway at 65 mph. In W TX, driving about 78 mph, it will run 15 - 16 mpg depending on terrain and wind, which is virtually every day.Edit: I have a 3.73 rear end.

Fuel mileage - Dodge 6.4 Hemi | Good Sam Community

kzspree320
Explorer
Jul 15, 2017
Here is a thread I started about my towing experience. My 2016 Ram 2500 has a 6.4 hemi and 4.10 rear axle. It is a long read and has some detail, but since you are considering buying. It has detail mileage towing my fiver. Hope this helps.

CLICK HERE TO READ ABOUT 6.4 HEMI TOWING
Camper_G
Explorer
Jul 15, 2017
Around town, stop and go traffic, I'm between 10-12 mpg average. On the highway I've been up to 19+ mpg average. Pretty good imo, for a truck of this size and weight. I have the 3.73 gears
GordonThree
Explorer
Jul 15, 2017
My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.

It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.
kzspree320
Explorer
Jul 15, 2017
GordonThree wrote:
My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.

It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.

In my experience, getting 11 mpg on any gas vehicle towing a TT is great, not terrible. Your 3,500 lb TT has about the same frontal area drag as a 8,000 lb TT. A diesel will certainly get better, but 11 is great towing a TT. Towing my 12K fiver I consider 8 mpg good for a gas vehicle. My 2015 Ram diesel only got 11 mpg towing the same fiver. There is a lot of aerodynamic drag that must be overcome towing anything that looks like a box.
sourdough2224
Explorer
Jul 15, 2017
My 2014 6.4, CC, 4x4 and 6'4" box gets 8-9 towing my 9500 lb (loaded) trailer. It will drop lower when pulling mountains but from TX to FL I'll average the above. Unloaded it will get about 14 in town (we live in a smaller town) and I've seen 20 mpg on the highway at 65 mph. In W TX, driving about 78 mph, it will run 15 - 16 mpg depending on terrain and wind, which is virtually every day.

Edit: I have a 3.73 rear end.
GordonThree
Explorer
Jul 16, 2017
kzspree320 wrote:
GordonThree wrote:
My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.

It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.

In my experience, getting 11 mpg on any gas vehicle towing a TT is great, not terrible. Your 3,500 lb TT has about the same frontal area drag as a 8,000 lb TT.

I accept it as part of the cost of camping. The 6.4 does get better mileage than my previous 5.7, which was 8-9 mpg towing the same trailer. The 5.7 had 3.92 gears, for what difference that made.
Blazing_Zippers
Explorer II
Jul 16, 2017
We put on 6743 miles (North Idaho, Alaska, and return) and averaged 9.6 mpg on the dash, with 9.4 hand calculated. We're pulling a Cougar 279RKS fifth wheel that tops out at 10300 lbs--we're pretty close to max weight.
Our Ram is a 16, 2500, 6.4, 4 door, 4WD, with 373 gears.
Very happy!!!
SETenn
Explorer
Jul 16, 2017
Thanks for all of the replies, they have been very helpful! I hope to purchase early next year.
drsteve
Explorer
Jul 16, 2017
GordonThree wrote:
My 6.4 gets terrible mileage towing, best I've seen is 11 MPG. My trailer is light weight too, only 3500 lbs. Driving speed is 55 almost always, my trailer tires are only rated for 60mph.

It's not a daily driver or grocery getter, if I'm not towing, I'm not driving it - can't give you any feedback on mpg as a daily driver / grocery getter.

My low mileage 06 Silverado with 6.0L gets 9 on a good day.
MVH1
Explorer
Jul 17, 2017
Blazing Zippers wrote:
We put on 6743 miles (North Idaho, Alaska, and return) and averaged 9.6 mpg on the dash, with 9.4 hand calculated. We're pulling a Cougar 279RKS fifth wheel that tops out at 10300 lbs--we're pretty close to max weight.
Our Ram is a 16, 2500, 6.4, 4 door, 4WD, with 373 gears.
Very happy!!!

Wow! What was your average speed for the trip?