Will Fuel Economy Rules Require Future Cars To Use Premium Gas?
Green Car Reports
APRIL 30, 2015
Carmakers are pursuing continual fuel-economy gains to meet the Corporate Average Fuel Economy (CAFE) standard of 54.5 mpg set for 2025. Their engineers work to squeeze every last bit of efficient from cars and trucks, but so far there's been little consideration of the fuel itself. Some efficiency-focused upgrades to standard gasoline engines. Gasoline Fuel Economy octane