This is what you get for always maintaining a good 5ft distance between you and the trailer you are following
I always did, if hauling class A explosives, I fell back to 7 ft just so some car would not sneak in between.
Got better fuel mileage, bossman said I was doing a good job, I turned off my lights so police didn't notice.
Now I'm employed at Coop Dispatch, we are experimenting with a 6ft towbar,Big Dave says this should
be even better on fuel.
Newer drivers should consult with your safety dept. before attempting this, it is recommended for experienced drivers only.