Everyone reschedules their driving, cutting out unecessary trips, or even doubling up with someone else once in a while, so that each driver saves 1 gallon per week. Result: savings of 70 to 100 million gallons per week. Quick and easy - should solve the problem.
That's why SUV's roll over from blowouts. They are invariably overloaded for long treks and each mph over 65 causes the heat buildup to expand logarithically. Thus, anyone daring to do 75 to 80 under such circumstances is really asking for it.