6.4L towing MPG?

[PCT]

I pulled a 26’ TT (30’ from hitch to bumper) from California Central Valley (near Stockton) to Sedona AZ. 4 days. Day 3 had huge headwind about 40 mph. Trailer dry weight is about 8k, with all of our stuff we’ll round to 9.5-10. I set cruise around 62 mph for a majority of trip. I averaged about 10.4 mpg EVIC(mine has been calculated to be with in .2 mpg)

What do y’all think with a 6.4L hemi?

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[Power247]

Anything around 10 is great in my book. I typically get between 8 and 9 when pulling our TT but I also tend to run closer to 65 mph on the highway.

 

[jsalbre]

That’s about what I see if I’m nice to it as well. MPGs drop fast once you get over 65 though.

 

[gimmie11s]

I think you did outstanding. 10+ is GREAT mpg towing for any motor -- especially the gas option.

That said... 62!?!?!? Every 18 wheeler on the road was probably flipping you off the whole way lolol

 

[Grateful Dad]

I get between 7.5 to 8.5 mpg towing my 5v’r on the Hwy, it goes up to a bit on all other roads. Usually running 72 on the Hwy unless traffic dictates otherwise.

Fully loaded I’m right around 10k.

 

[PCT]

I think you did outstanding. 10+ is GREAT mpg towing for any motor -- especially the gas option.

That said... 62!?!?!? Every 18 wheeler on the road was probably flipping you off the whole way lolol

I was being passed nearly ever big rig lol! Especially in Arizona, I was getting like 5-7 mpg trying to go 70-75 MPH. Screw it, I’m slowing down!


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[gimmie11s]

I was being passed nearly ever big rig lol! Especially in Arizona, I was getting like 5-7 mpg trying to go 70-75 MPH. Screw it, I’m slowing down!


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Too funny.... I often wonder what my mpg would be if I slowed it down to 65 mph or so. I average 70-75 when we travel so im in the 8 to mid 8's mpg. Oh well haha

 

[Firebird]

My 2019 6.4 with 4.10 gears, pulling 35' travel trailer got 7.5 mpg

 

[areuriding]

PW gets about 7...

 

[Gondul]

32ft, about 7-8...

 

[sludge]

I had a 2014 with the 6.4 and the old six speed. Pulling a toy hauler at 9500 lbs and going 63 mph I would average 6.5 to 8 mpg depending on the terrain. I would have been thrilled with 10 mpg.

The only time could get 10 mpg was if it was completely flat. I would see this traveling east out of Flagstaff for about a 100 miles.

One trip coming home heading west into Barstow, the head wind was so bad, my dash was consistently showing I was getting 2 to 3 mpg. The one and only time I had to pull over and transfer gas from the toy hauler to the truck.

 

[jdefoe0424]

I tend to follow slower traffic or semi's and usually see 8-10 depending on traffic and weather.

 

[Eatonpcat]

headwind about 40 mph

Dang....That sounds like you got great mileage, I could see 6 mpg into that wind!

 

[Clayinfl]

I did a trip to Tenn from Fl two weeks ago. Towing 7500 pound RV. I averaged 9.3
mpg. Better than my 1500 did on the same trailer. Plus the larger tank gives me much better range.

 

[Rockcrawlindude]

Anything over 10 is great. 9-10 is normal for me towing a big box at warp speed

 

[Firebird]

You guys sure are getting great economy! I never saw numbers like 9-10mpg pulling my camper

 

[Firebird]

Anything over 10 is great. 9-10 is normal for me towing a big box at warp speed

What gears do you have?

 

[Rockcrawlindude]

What gears do you have?

3.73

 

[Firebird]

3.73

Ok, that's what my new 23 has as well. I'm curious to see how it tows my camper.

 

[Rockcrawlindude]

Ok, that's what my new 23 has as well. I'm curious to see how it tows my camper.

For context, I have a 20x8.5’ enclosed 7’ interior height roughly 7500lb and I tow at ten over the limit same as I do unloaded. 75-80mph is really hell on mpg but I got places to be.