Yes ethanol kills milage considerably. Ethanol free is getting scarcer by the day. In Canada, both Shell and Petro Canada use 10% in regular, 5% in midrange and no ethanol in Super. Unfortunately the higher cost offsets the MPG gains so it becomes a draw at the end of the day. If one could find a station the has no ethanol in regular gas that would be the best for the RL for economy. Bottom line is 10% ethanol reduces milage about 3% so about 1 mpg or less on the RL. Not all that huge IMHO.
FYI, EPA figures are produced with ethanol free gas on all cars/trucks, makes you wonder why when 95% of gas sold contains ethanol. This changed with 2017 model year vehicles as they now actually use E10 to reflect better the figures obtained. In a nutshell, the RL EPA figures were done with E10 gas.
FYI, EPA figures are produced with ethanol free gas on all cars/trucks, makes you wonder why when 95% of gas sold contains ethanol. This changed with 2017 model year vehicles as they now actually use E10 to reflect better the figures obtained. In a nutshell, the RL EPA figures were done with E10 gas.