Here's some much needed context:
But in constant 2010 dollars, that 1919 price of gas was $3.14. True, at the moment we’re paying a bit more—about $3.96. However, keep in mind that in 1919 there were 7.58 million motor vehicles on America’s roads. Today, Americans own about 254 million vehicles. That means that gas prices have risen 26 percent since 1919, while US vehicle ownership has risen 3,250 percent. And those vehicles are being driven more intensively than their 1919 counterparts. We now drive 6,800 percent more miles per year than in 1919, while gas prices have stayed pretty much stable.