In a class C, with the V10, you can expect 8-9 MPG. It will improve drastically when less or averaging 55 MPH, at 62 you can expect 8-9 depending on the hills, around 70 you can expect 7-8 MPG.
Don't worry to much about it, and enjoy the camping!
Your insurance bill and oil changes for the year will probably be more than the fuel bill, if you are only going about 5,000 miles per year, that is about 500 gallons of gas.
Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a
Porsche or Country Coach!
If there's a WILL, I want to be in it!
I havn't been everywhere, but it's on my list.
Kangen.com Alkaline waterEscapees.com