Interstate vs. secoundary roads?
I was wondering if driving the interstate using cruise countrol would save much gas verses the slow down, speedup of going thru towns? My truck seems to have a sweetspot towing of 63 mph.
Forum Discussion
I am curious why I am the odd one out. I am quite certain on my mpg findings, the computer in the car even confirms them. I would say that it is likely that there is no one answer as it probably depends on the TT/TV combo. In my case I have a small TT being towed by a gas SUV and am well under weight, however the TT is not very aerodynamic, and when driving at 60mph I am at about 2200rpm, when I get to 65mph I am at 3000rpm and I lock out overdrive to keep it from constantly hunting. My guess is that the biggest factor is gear ratio/rpm's. Regardless in my case because the sweet spot is 60 and there is a huge hit on mpg when I go up from there, secondary highways, even with occasional stop and go is hands down the winner for mpg.
