A rational action if one truly believed high fuel prices are on the way Up and here to stay ala 1970-1980s would be to trade in the gas guzzler and buy a Prius or Tesla.
Better yet, leverage your assets and buy a fleet of Priuses in anticipation of a sharp uptick in demand in the next two months and flip them.
Just one thought experiment to ask oneself about how much one believes in doom and gloom.