I am new to my 2017 Minne Winne 22R and have a few questions

[JRM]

I have just purchased a 2017 22R with 39,000 miles. It is a F450 chassis with a Triton V-10 engine. I drove it about 850 miles up I-5 to my home north of Seattle. My previous two RV's were Chinooks with the v-10 and I got 10-11 mpg. On my trip home I got 8.5 mpg. I figure it was the larger wind surface on the coach plus doing 70-75 mph that lowered the mileage. What are others getting with their v-10's? Second question: I am thinking of switching the two group 24 deep cycle house batteries to one 300 AH Renogy lithium phos. battery. I am concerned that the battery is exposed to the outside temperature as it is in the staircase that has opening in it. These batteries do not like temps. below 32 degrees and most have a low temp shut off for charging. Has any one else installed a Lithium battery in this coach? If so, how did it perform during winter temps.?

Thanks in advance for anything that you can offer--Royce

 

[AbdRahim]

See if they offer a heater for the battery.

 

[DennisT]

We had a 2014 Forester 3051 and got around 8.5 mpg as well. It was pushing max chassis weight too. We also pulled a 3,000 lb toad behind it.

We did gain some when I added a 5 Star Tune to it. Helped with performance as well.

Running between 60 and 65 helps as well

 

[JRM]

See if they offer a heater for the battery.

They do, but that battery is 6" longer and will not fit the battery box. The non heated one has a low temp shut off that protects it from being charged at below 30 degrees.

 

[JRM]

We had a 2014 Forester 3051 and got around 8.5 mpg as well. It was pushing max chassis weight too. We also pulled a 3,000 lb toad behind it.

We did gain some when I added a 5 Star Tune to it. Helped with performance as well.

Running between 60 and 65 helps as well

what is a 5 star tune? Thanks- Royce

 

[Holdmybeer]

I get ~7 in my 32' 2016 Jayco Alante w/ 6.8L V-10. I run in T/H always however ( losing around 1/10 mpg or so, but I like the shift pts. better). I dropped to 6.83 towing ~6,500 lbs this past 1000 mile excursion, keeping it under 65. It's about as un-aerodynamic as can be imagined too.

 

[JRM]

They do, but that battery is 6" longer and will not fit the battery box. The non heated one has a low temp shut off that protects it from being charged at below 30 degrees.

I crawled under the RV and found that I could easily re-locate the new battery to a large storage area under the forward dinette seat. I would have room for the larger battery that is heated or I can cut a vent hole into the rest of the RV interior where it will always be kept above freezing. I can also add additional insulation to the exterior walls of the storage box. I think that this will solve the low temp problems of a lithium battery.
Royce

 

[DennisT]

what is a 5 star tune? Thanks- Royce

https://5startuning.com/

They make custom tunes for the engines. Made a huge difference in the overall operation of our old class c.

It downloads the current info and loads the new one.