To increase the state gasoline tax from 19 cents per gallon to 26.3 cents per gallon starting in 2017, and after that index the amount to inflation. Also, to increase the state diesel tax from 15 cents to the same 26.3 cents per gallon level, and increase this with inflation too. This is part of a legislative package to increase road funding that includes this motor fuel tax increase, a 20 percent vehicle registration tax hike, and an earmark of some future income tax revenue to road repairs.