When gas was 79 cents, the gas tax was about 30 cents or so. Gas is now $4.08 and I think the tax is still around 30 cents. It probably should go up to pay for transportation infrastructure. On other note, The roads are still too fucking crowded. My time lost in traffic is worth far more than the current cost of gas. I want gas to get high enough so traffic, even during rush hour, becomes a thing of the past. I'm telling ya the feds should lug another $1 on gas then use the money to invest in mass transit so all these fucking losers get off the roads and into buses, streetcars, and trains. Too many fucking idiots in this country think they are entitled to everything for free.