HM techniques not required. Driving sanely and at the posted speeds while avoiding 'binary driving' (foot always on one of the pedals) will do the trick for a large portion of the population. I beat highway EPA every day even in the winter with no drafting, no FAS, no overkill air in the tires, no super-thin oil, etc. Just cruise control at 60-65 and take my foot off the gas early when I know there's a stop or slowdown ahead. Lots of drivers can attest to the same.