We are home now just resting up from the holiday, funny how that works!! I feel more tired now then before we left!!lol We did make a couple of stops along the way to do some visiting, did a little more fishing around Saskatoon. We didnt stay at one rv park the whole trip just dry camped or stayed with friends or relatives.
I know I could get better mileage, I don't always use my cruise either, sometimes I look at my speed and im doing 75-80, the temp was coming up a bit if I was hard on it so I will have to give the rad a good cleaning. There wasnt much noticable wind so that wasnt really a factor. My b300 transmission is geared a bit lower than a normal md3060 allison so my rpms were about 1900 @ 60mph. A 3060 with 5:29 diff should be 70mph @ 1900. That would make a difference also, when I change out the diff from my donor bus I will change the gearing in it from its 6:38 to 4:89 so ill be going from my original 5:29 to 4:89 with the later s-cam brakes. This should bring my rpms very close to 70mph @ 1900. I really dont see any reason it wouldn't get 12mpg, as I know of others that get it all the time with the 8.3
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
Many others to list
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