Originally Posted by 14muddn
Towing a 16' enclosed trailer loaded between wixom and Saginaw I have got as low as 10 doing 80+ and as well as 16 at going 65 the whole way. A lot of that had to do with the wind of the enclosed trailer I imagine. A couple months ago I headed down to Alabama towing a two place trailer with a couple of quads and 1000# of birdseed in the bed and pulled 16 going around 75 the whole way. All this was with the "60hp towing" tune. 285 tires, 3.73 gears, 6 speed, no stacks, no tornado
Say it isn't so man there's absolutely no way you can get that good of mileage with a 7.3l (sarcasm). I know the numbers you claim and I claim are not typical but I actually got the numbers listed. My 5th wheel was a lite model and only a 25ft'r, it weighed in at 5600# empty. Haven't seen close to those numbers since the recall CPS though. We consistently lost 3-4 mpg with it and from what I've read this is the new norm everyone at the Dieselgarage.com and dieselstop.com were reporting the same losses. My truck is not a stock set-up either and almost all mods done resulted in better fuel economy if you could keep your foot out of it LOL. I always ran my tires at 85psi also. If I went over 2000 rpm which for my truck falls right at 68mph it would drop about 1 mpg for every 100 rpm strange but true. I spent many hours researching and experimenting to achieve the best fuel economy I could.
Maybe we should reinstall the DT466 CPS and try that again, the mechanics wouldn't just give me a new CPS for the recall they said they had to remove and keep what was in the engine at the time of the recall. I told them"no way you're keeping my DT466 CPS" and gave them an old one that had been in the truck previous to me installing the DT466 CPS.