Truck- Trailer combos and vehicle performance.

[SF-SGM]

I'm not sure if this is the place to post this? We just completed a 5,000 mile trip out west with our 2021 Reflection 337RLS and our 2020 Ford Super Duty. Everything went awesome! No issues with truck or 5th wheel. The truck has the new 6.7 diesel with a 10 speed trans. I am very impressed. I found that driving at 65 mph was most efficient in 9th gear. Up and down he mountains with almost no down-shifting (except going downhill of course with engine brake on). 90% of the trip was towing the 5th wheel. After 5K miles, to the Tetons, Yellowstone, and Glacier and back- 13.4 mpg.

I've driven the Dodge 8 speed in vans when taking my wrestling team to events and it hunted like mad. I was wondering about the Ford truck. My cousin that builds them in Michigan likes them but he doesn't tow a trailer with one.

[bertschb]

I've driven the Dodge 8 speed in vans when taking my wrestling team to events and it hunted like mad. I was wondering about the Ford truck.

The 10 speed in my 2020 6.7 F-350 is super smooth and doesn't hunt at all. The programming is excellent.

[Malco1]

What rear gear do you have and what is you solo fuel mileage with the new 6.7

I am asking as I am on the fence whether to get the 6.7 an deal with the DEF and service cost issues or get the 7.3 gas and live withe the 8-10 gas mileage while towing and 14 solo. Thoughts? BTW my Reflection 150 series 220RK is under 9K GVWR

No engine exhaust brake on the gaser. Also as a previous owner of a gas class A gas motor home, pulling into a gas station was always a bone of contention. With a diesel I just pull into the truck lanes and use my EFS card.

[Rgkeaney]

No engine exhaust brake on the gaser. Also as a previous owner of a gas class A gas motor home, pulling into a gas station was always a bone of contention. With a diesel I just pull into the truck lanes and use my EFS card.

I cannot imagine going over Eisenhower tunnel (coming down) or down either side of berthoud pass (both Colorado) or wolf creek pass without an engine brake. That’s huge for me here in this state.

Great reminder on the engine brake.


+++++++++++++++++++
2016 Ram 2500 Cummins
Andersen ultimate
2020 GD 31MB
Champion dual fuel 3500 generator
Steadyfast stabilizers
Dinosaur electronics ignitor board
MicroAir Easy-Start

[Spartacus]

Yep, I love my Ram ctd 3500 it proved itself when we was on at 3000+ trip a few weeks ago going up in the mountains and coming down I have had gas most of my life and this one I am so glad I bought it.

[Kevin.lanes]

I have a 2020 Duramax and it’s my first diesel so I understand the DEF concern, but factor in the lower cost of diesel and the fact you can go to the truck stop and get pump DEF. (something I learnt on this forum)

You will appreciate the diesel with every hill you climb leaving the gassers behind.

[Kanman]

Have the 2021 337RLS and 2020 F350 SRW with the 6.7 as well; no real long tows yet just a few hundred miles, but get between 12 & 13 mpg towing and at 65-70 mph. The power and smoothness of this setup is awesome. Plan on about a 3500 mile trip this winter, so this will be a true test. Was thinking about buying the 7.3 gasser and I am so glad I got the deisel, the power is amazing and the mpg empty is much better too.

[stevec999]

What rear gear do you have and what is you solo fuel mileage with the new 6.7

I am asking as I am on the fence whether to get the 6.7 an deal with the DEF and service cost issues or get the 7.3 gas and live withe the 8-10 gas mileage while towing and 14 solo. Thoughts? BTW my Reflection 150 series 220RK is under 9K GVWR

I am pulling a 240rl with the 7.3. Trailer weighs 9100lbs. Truck tows great. I have had diesel in the past but have no real use for one. I have towed 3800 miles this summer and averaged 9.2mpg. The diesel cost 8k more , fuel cost is higher and gets better mpg. All considered you will need to tow over 100k miles to break even. With the large displacement of the 7.3 it has good engine braking ability. On a 5 mile 6% grade I did not have to touch my brakes. I am thrilled with the way my f350/7.3 combo works.

If I was towing >13k I would have a diesel.

[OurNewEra]

I'll put mine in this thread as the oldest TV. We use a 1996 Chevy K3500-Crew-SRW-Long Bed-7.4L Gas. The truck just turned over 285,000 on our latest trip. We pull a 2021 Imagine 2970RL. Last week was our first trip with the new TT. Prior we towed a vintage single axle Airstream that weights 2,600 lbs (we still have it). So quite a difference with our new Imagine.

This recent trip I got 7.7 mpg with 93 octane gasoline. Lesser octane provides about 5.2 mpg. I'll take the lower mpg compared to new trucks and not have the monthly payment.

[RVing in Michigan]

Question on my gears; I have 3.55.