[TKWPrime]

The problem is in the economics of trucking. A lot of these drivers get paid by the mile driven with fuel cost either paid for by the trucking company or a tax write-off. That gives the driver the wrong incentive - go as fast as possible to get the most miles possible.

The $/mile pay is typically so low that, to feed their families, the truckers really need to be running 65 mph+.

As a community, if we are really interested in saving fuel, we should be lobbying for several changes to the trucking laws.
1. Pay truckers on an hourly basis not a per mile basis.
2. Reward reduced fuel costs by paying the trucker a share of any fuel savings from increased FE.
3. Road trains. A semi pulling three trailers in tandem doesn't burn significantly more fuel than a semi pulling a single trailer.