Quote:
Originally Posted by fivecodys
The best I have recorded is 10.1 mpg on flat land.
I average 9 mpg overall trip. (mix of mountains and flat land during a 170 mile trip)
My worst was 8.3 and that was with high winds.
From most V-8 gassers like us, I hear that 8-9 while towing is the norm.
I have never tried going slower than 61 or 62 mph. I'm afraid I would get ran over. 
I do remenber one poster over on the RV forum stating that he got 11 mpg at 55 mph. That's dangerously slow to drive in this state. 
Bill |
I think that's why I brought up the question in the gear to tow. Either though towing in S5 was not a complete nuisance, the shifting was getting old, and I averaged about 9-10mpg. Using cruise control was out of the question. Now when I tow in S4, at 2900 rpm (64-65mph), I can easily get 10mpg and use the cruise more. I just have to shut off the cruise on hills. After 5 hours of driving, I figured out the type of hill I need to shut off my cruise on so it doesn't kick down to 3rd. Maybe I found the sweet spot in S4. I think most people (including me) are more comfortable towing at a lower RPM. I think I was getting about the same MPG's or little less with S5 but regulating my foot pedal a lot more, and shifting quite a bit. S4 I can sit back and use cruise control most of the way, but also have to see the RPM consistently at 2900.