More ethanol will be added to the nation’s gasoline supply under new requirements than vehicle engines can handle, the Environmental Protection Agency confirmed Monday.

The updated Renewable Fuel Standard increases the amount of biofuel, mainly corn ethanol, in the nation’s gasoline supply to 18.11 billion gallons in 2016, up from 16.93 billion in 2015. That has angered oil industry groups and consumers who are concerned about pushing past the “blend wall,” or the point at which a car engine is damaged by burning too much ethanol.