Up to 83% or 85%: https://www.fueleconomy.gov/feg/flextech.shtml https://www.fueleconomy.gov/feg/flextech.shtml Really fun to pull into a gas station and accid

Up to 83% or 85%: https://www.fueleconomy.gov/feg/flextech.shtml https://www.fueleconomy.gov/feg/flextech.shtml Really fun to pull into a gas station and accidentally fill your tank with gas it can't handle.