I own a 2011 Ram and after sitting for over a month, it started at 5 degrees a couple weeks ago. I did plug in the engine heater for about a half hour before my starting test, but as cold as things were I doubt it made much difference. It had been not started due to a illness and frankly I was surprised after such a long time sitting the batteries were still up and while it turned slower than normal, it started with just a turn or two.
The question you ask about additives is the one that might generate the most debate. I only add something if the temps are consistently around 10 degrees or lower. After my truck started I did add a dose of Power Service to the tank, but the fuel the truck started on was untreated.
The Ram owners manual states that adding things like Power Service are un nessrary with todays fuels. I'm too busy to research this as completely as I'd like, so I err by adding a small amount when we reach the extreme limits of our cold weather.
Not looking for any debate either. This is just what I do and it works for me.
If you have one of those cool Harbor Freight IR thermometers ($25 on sale) that EVERY RVer should own, check your caliber & rotor temps and take real numbers in with you, in addition to "sounds" that very often can't be reproduced. If they plug the temps into their computer, it will tell them to change the caliber. Give them the answers they need to find the problem we all know exists.
We have a young family in our church who started their deputation travels around the country raising the support they would need on the mission field. As they were getting ready they needed a 5ver to haul for their family and a truck to haul it. He asked me one day about things to avoid and I told him to not walk away from a truck that had the 6.0 in it - run from it.
They had a person in a dealership offer them a "deal" on a 05(?) truck and a pretty nice 5ver bunkhouse. This time he didn't ask me, he knew what I'd already told him. In short he bought the combo and an "extended warranty" on the truck, thinking that it would cover things if it blew up.
After three months on the road the motor puked just 75 miles away at a local church. His extended warranty did Help" with the overhaul but it still cost him $3500 out of pocket. I suggested that he take it to a local shop that bullet proofs the 6.0, but he had lots of meetings to get to and decided that he needed to get on the road. 7 months and 60k miles later the motor puked again in Montana in the middle of winter. The warranty company stepped up and covered all but $2000 this time and he was back on the road for 13 months in Omaha Ne, the motor puked again. This time with no warranty and facing a $12k bill at a ford dealership, he elected to trade it all in on a Explorer that he would be able to drive for the last month of his time on the road.
Three major pukes in two years of full time RVing. I believe you can never argue a idea with a man who has experience. Our young friends have experience - I wonder what they think of a 6.0 now???
I see a ecoboost option in the Ford Transit this year. The Transit is the new van option that looks like a sprinter. Towing cap. is only 5k, so that's a bummer. If they bring it over to the heavy duty side of the house, it will need more intestinal fortitude.
A few days back you could "build and price" but that's not working right now for some reason. It seems like I was "building" a one ton, but I've been looking at a lot of them, so maybe not. A one ton with a 5k limit seems pretty lame.
Looks good to me. If anything I like to have a little bit of tilt to the front for a conventional trailer.
If the TT is level the load on the tires is even. If you're nose low the front springs and tires are being loaded heavy. It will lead to the front tires running hot on a long pull.
To the OP - Run it! looks great! If you run in areas where high cross winds are a problem, get the 1200lb bars. I've been hauling a similar weight TT for 4 years, about 1/2 time, 15-20k miles a year and only in the SW have I ever had winds ground us. 1000lb bars in my setup.