As a result of actions due to the coronavirus (Covid -19) and the subsequent reduced economicactivity, fuel consumption has been significantly reduced. The fuel distribution system is dependenton high throughput to transition from higher vapor pressure winter fuels to lower vapor pressurefuels for the summertime EPA regulated ozone season.In response, EPA has enacted waivers of seasonal fuel requirements. For more details, pleasereference the EPA website.epa.gov/enforcement/nationwide-fuel-waiver-concerning-summer-gasoline.This could result in more volatile/ higher vapor pressure fuel in the retail fuel system longer thanwhat is normally permitted by the EPA or States. Customer issues related to higher volatile fuelcombined with warmer ambient temperatures are possible, and standard diagnostic procedures maynot lead to a root cause.Potential issues could include vehicle refueling concerns, stalling, driveability issues, DiagnosticTrouble Codes (DTCs), increased evaporative emissions and fuel odor. Issues are most likelyto occur in warm temperatures within 1-3 days of refueling.POLICY:Information Only
