To deal with pumps that don’t have enough numbers on them to go above $3.99 per gallon, some gas station owners are selling gas by the half-gallon. Another problem is that pumps with dials on them are wearing out faster as the dials have to spin faster to keep up as the dollars per second coming out of the pump is greater. There is a seventeen-week backlog for replacement pumps that let the price show above $3.99.