[user removed]

I have seen a dozen big rigs sharing drafting duty (less than 75 feet separation) on I95 going south of DC for 70 miles. They didn't like me being between them (costing them money) but following up in the rear at a stopping distance gap was good for 68 MPG in my stock 94 VX, averaging 65 MPH (speed limit), when gas was $4 a gallon last summer.
Another advantage is the rest of the nuts going 80 MPH (reckless driving conviction here), would not think of using the distance in front of me for passing with a few rare exceptions.

I generally like 3 stripes between me and the host (43 feet from point to point between stripes). Since I am a slow (relative to others) driver, the right lane is where I am legally supposed to be. It also gives me an always available escape route to the right if I spot a large chuck of debris, and the time to see the debris.

regards
Mech