I was drafting a little last week on the interstate. It seemed like I could get a pretty good draft off a tall semi with the standard box trailer from about 4.5 car lengths back. I felt pretty safe back there and was surprised at how much it was helping.
I say I was getting a good draft just because of the decrease in wind noise and the reduction in throttle I had to give to maintain 70 mph. I also noticed a sweet spot that is behind and diagonal to the semi trailer (in the next lane over). |
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Drafting definately adds about 8-10mpg to my avg FE. Gary |
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